Either of a pair of compound bones forming the lateral (left and right) surfaces and base of the skull which contains the organs of hearing. It is a large bone formed by the fusion of parts: the squamous (the flattened anterior-superior part), the tympanic (the curved anterior-inferior part), the mastoid (the irregular posterior portion), and the petrous (the part at the base of the skull).
A specialized CONNECTIVE TISSUE that is the main constituent of the SKELETON. The principle cellular component of bone is comprised of OSTEOBLASTS; OSTEOCYTES; and OSTEOCLASTS, while FIBRILLAR COLLAGENS and hydroxyapatite crystals form the BONE MATRIX.
The posterior part of the temporal bone. It is a projection of the petrous bone.
Surgery performed on the external, middle, or internal ear.
The dense rock-like part of temporal bone that contains the INNER EAR. Petrous bone is located at the base of the skull. Sometimes it is combined with the MASTOID PROCESS and called petromastoid part of temporal bone.
A mobile chain of three small bones (INCUS; MALLEUS; STAPES) in the TYMPANIC CAVITY between the TYMPANIC MEMBRANE and the oval window on the wall of INNER EAR. Sound waves are converted to vibration by the tympanic membrane then transmitted via these ear ossicles to the inner ear.
The narrow passage way that conducts the sound collected by the EAR AURICLE to the TYMPANIC MEMBRANE.
The continuous turnover of BONE MATRIX and mineral that involves first an increase in BONE RESORPTION (osteoclastic activity) and later, reactive BONE FORMATION (osteoblastic activity). The process of bone remodeling takes place in the adult skeleton at discrete foci. The process ensures the mechanical integrity of the skeleton throughout life and plays an important role in calcium HOMEOSTASIS. An imbalance in the regulation of bone remodeling's two contrasting events, bone resorption and bone formation, results in many of the metabolic bone diseases, such as OSTEOPOROSIS.
Neoplasms of the bony part of the skull.
Fenestra of the cochlea, an opening in the basal wall between the MIDDLE EAR and the INNER EAR, leading to the cochlea. It is closed by a secondary tympanic membrane.
The space and structures directly internal to the TYMPANIC MEMBRANE and external to the inner ear (LABYRINTH). Its major components include the AUDITORY OSSICLES and the EUSTACHIAN TUBE that connects the cavity of middle ear (tympanic cavity) to the upper part of the throat.
Tumors or cancer of any part of the hearing and equilibrium system of the body (the EXTERNAL EAR, the MIDDLE EAR, and the INNER EAR).
The amount of mineral per square centimeter of BONE. This is the definition used in clinical practice. Actual bone density would be expressed in grams per milliliter. It is most frequently measured by X-RAY ABSORPTIOMETRY or TOMOGRAPHY, X RAY COMPUTED. Bone density is an important predictor for OSTEOPOROSIS.
One of the three ossicles of the middle ear. It transmits sound vibrations from the INCUS to the internal ear (Ear, Internal see LABYRINTH).
Transmission of sound waves through vibration of bones in the SKULL to the inner ear (COCHLEA). By using bone conduction stimulation and by bypassing any OUTER EAR or MIDDLE EAR abnormalities, hearing thresholds of the cochlea can be determined. Bone conduction hearing differs from normal hearing which is based on air conduction stimulation via the EAR CANAL and the TYMPANIC MEMBRANE.
The essential part of the hearing organ consists of two labyrinthine compartments: the bony labyrinthine and the membranous labyrinth. The bony labyrinth is a complex of three interconnecting cavities or spaces (COCHLEA; VESTIBULAR LABYRINTH; and SEMICIRCULAR CANALS) in the TEMPORAL BONE. Within the bony labyrinth lies the membranous labyrinth which is a complex of sacs and tubules (COCHLEAR DUCT; SACCULE AND UTRICLE; and SEMICIRCULAR DUCTS) forming a continuous space enclosed by EPITHELIUM and connective tissue. These spaces are filled with LABYRINTHINE FLUIDS of various compositions.
An implant used to replace one or more of the ear ossicles. They are usually made of plastic, Gelfoam, ceramic, or stainless steel.
Discharge of cerebrospinal fluid through the external auditory meatus or through the eustachian tube into the nasopharynx. This is usually associated with CRANIOCEREBRAL TRAUMA (e.g., SKULL FRACTURE involving the TEMPORAL BONE;), NEUROSURGICAL PROCEDURES; or other conditions, but may rarely occur spontaneously. (From Am J Otol 1995 Nov;16(6):765-71)
Bone loss due to osteoclastic activity.
A mass of KERATIN-producing squamous EPITHELIUM that resembles an inverted (suck-in) bag of skin in the MIDDLE EAR. It arises from the eardrum (TYMPANIC MEMBRANE) and grows into the MIDDLE EAR causing erosion of EAR OSSICLES and MASTOID that contains the INNER EAR.
Pathological processes of the inner ear (LABYRINTH) which contains the essential apparatus of hearing (COCHLEA) and balance (SEMICIRCULAR CANALS).
The soft tissue filling the cavities of bones. Bone marrow exists in two types, yellow and red. Yellow marrow is found in the large cavities of large bones and consists mostly of fat cells and a few primitive blood cells. Red marrow is a hematopoietic tissue and is the site of production of erythrocytes and granular leukocytes. Bone marrow is made up of a framework of connective tissue containing branching fibers with the frame being filled with marrow cells.
Inflammation of the honeycomb-like MASTOID BONE in the skull just behind the ear. It is usually a complication of OTITIS MEDIA.
Tumors or cancer located in bone tissue or specific BONES.
An oval semitransparent membrane separating the external EAR CANAL from the tympanic cavity (EAR, MIDDLE). It contains three layers: the skin of the external ear canal; the core of radially and circularly arranged collagen fibers; and the MUCOSA of the middle ear.
A usually benign tumor composed of cells which arise from chondroblasts or their precursors and which tend to differentiate into cartilage cells. It occurs primarily in the epiphyses of adolescents. It is relatively rare and represents less than 2% of all primary bone tumors. The peak incidence is in the second decade of life; it is about twice as common in males as in females. (From Dorland, 27th ed; Holland et al., Cancer Medicine, 3d ed, p1846)
The part of the inner ear (LABYRINTH) that is concerned with hearing. It forms the anterior part of the labyrinth, as a snail-like structure that is situated almost horizontally anterior to the VESTIBULAR LABYRINTH.
Fractures of the skull which may result from penetrating or nonpenetrating head injuries or rarely BONE DISEASES (see also FRACTURES, SPONTANEOUS). Skull fractures may be classified by location (e.g., SKULL FRACTURE, BASILAR), radiographic appearance (e.g., linear), or based upon cranial integrity (e.g., SKULL FRACTURE, DEPRESSED).
The blind pouch at the end of the endolymphatic duct. It is a storage reservoir for excess ENDOLYMPH, formed by the blood vessels in the membranous labyrinth.
A small bony canal linking the vestibule of the inner ear to the posterior part of the internal surface of the petrous TEMPORAL BONE. It transmits the endolymphatic duct and two small blood vessels.
Three long canals (anterior, posterior, and lateral) of the bony labyrinth. They are set at right angles to each other and are situated posterosuperior to the vestibule of the bony labyrinth (VESTIBULAR LABYRINTH). The semicircular canals have five openings into the vestibule with one shared by the anterior and the posterior canals. Within the canals are the SEMICIRCULAR DUCTS.
A disease of the inner ear (LABYRINTH) that is characterized by fluctuating SENSORINEURAL HEARING LOSS; TINNITUS; episodic VERTIGO; and aural fullness. It is the most common form of endolymphatic hydrops.
The growth and development of bones from fetus to adult. It includes two principal mechanisms of bone growth: growth in length of long bones at the epiphyseal cartilages and growth in thickness by depositing new bone (OSTEOGENESIS) with the actions of OSTEOBLASTS and OSTEOCLASTS.
Cells contained in the bone marrow including fat cells (see ADIPOCYTES); STROMAL CELLS; MEGAKARYOCYTES; and the immediate precursors of most blood cells.
Severe or complete loss of facial muscle motor function. This condition may result from central or peripheral lesions. Damage to CNS motor pathways from the cerebral cortex to the facial nuclei in the pons leads to facial weakness that generally spares the forehead muscles. FACIAL NERVE DISEASES generally results in generalized hemifacial weakness. NEUROMUSCULAR JUNCTION DISEASES and MUSCULAR DISEASES may also cause facial paralysis or paresis.
A surgical specialty concerned with the study and treatment of disorders of the ear, nose, and throat.
Tomography using x-ray transmission and a computer algorithm to reconstruct the image.
Diseases of BONES.
The technique of placing cells or tissue in a supporting medium so that thin sections can be cut using a microtome. The medium can be paraffin wax (PARAFFIN EMBEDDING) or plastics (PLASTIC EMBEDDING) such as epoxy resins.
The 7th cranial nerve. The facial nerve has two parts, the larger motor root which may be called the facial nerve proper, and the smaller intermediate or sensory root. Together they provide efferent innervation to the muscles of facial expression and to the lacrimal and SALIVARY GLANDS, and convey afferent information for TASTE from the anterior two-thirds of the TONGUE and for TOUCH from the EXTERNAL EAR.
Formation of spongy bone in the labyrinth capsule which can progress toward the STAPES (stapedial fixation) or anteriorly toward the COCHLEA leading to conductive, sensorineural, or mixed HEARING LOSS. Several genes are associated with familial otosclerosis with varied clinical signs.
Hearing loss due to interference with the mechanical reception or amplification of sound to the COCHLEA. The interference is in the outer or middle ear involving the EAR CANAL; TYMPANIC MEMBRANE; or EAR OSSICLES.
The lower chamber of the COCHLEA, extending from the round window to the helicotrema (the opening at the apex that connects the PERILYMPH-filled spaces of scala tympani and SCALA VESTIBULI).
Hearing loss resulting from damage to the COCHLEA and the sensorineural elements which lie internally beyond the oval and round windows. These elements include the AUDITORY NERVE and its connections in the BRAINSTEM.
Diseases of the facial nerve or nuclei. Pontine disorders may affect the facial nuclei or nerve fascicle. The nerve may be involved intracranially, along its course through the petrous portion of the temporal bone, or along its extracranial course. Clinical manifestations include facial muscle weakness, loss of taste from the anterior tongue, hyperacusis, and decreased lacrimation.
Pathological processes of the ear, the hearing, and the equilibrium system of the body.
Surgical insertion of an electronic hearing device (COCHLEAR IMPLANTS) with electrodes to the COCHLEAR NERVE in the inner ear to create sound sensation in patients with residual nerve fibers.
A general term for the complete or partial loss of the ability to hear from one or both ears.
A dead body, usually a human body.
The part of the membranous labyrinth that traverses the bony vestibular aqueduct and emerges through the bone of posterior cranial fossa (CRANIAL FOSSA, POSTERIOR) where it expands into a blind pouch called the endolymphatic sac.
The origin, production or development of cancer through genotypic and phenotypic changes which upset the normal balance between cell proliferation and cell death. Carcinogenesis generally requires a constellation of steps, which may occur quickly or over a period of many years.
Renewal or repair of lost bone tissue. It excludes BONY CALLUS formed after BONE FRACTURES but not yet replaced by hard bone.
Hearing loss due to damage or impairment of both the conductive elements (HEARING LOSS, CONDUCTIVE) and the sensorineural elements (HEARING LOSS, SENSORINEURAL) of the ear.
Surgery performed in which part of the STAPES, a bone in the middle ear, is removed and a prosthesis is placed to help transmit sound between the middle ear and inner ear.
An infraorder of PRIMATES comprised of the families CERCOPITHECIDAE (old world monkeys); HYLOBATIDAE (siamangs and GIBBONS); and HOMINIDAE (great apes and HUMANS). With the exception of humans, they all live exclusively in Africa and Asia.
Large endothelium-lined venous channels situated between the two layers of DURA MATER, the endosteal and the meningeal layers. They are devoid of valves and are parts of the venous system of dura mater. Major cranial sinuses include a postero-superior group (such as superior sagittal, inferior sagittal, straight, transverse, and occipital) and an antero-inferior group (such as cavernous, petrosal, and basilar plexus).
Extracellular substance of bone tissue consisting of COLLAGEN fibers, ground substance, and inorganic crystalline minerals and salts.
A benign, painful, tumor of bone characterized by the formation of osteoid tissue, primitive bone and calcified tissue. It occurs frequently in the spine of young persons. (From Dorland, 27th ed; Stedman, 25th ed)
Electronic hearing devices typically used for patients with normal outer and middle ear function, but defective inner ear function. In the COCHLEA, the hair cells (HAIR CELLS, VESTIBULAR) may be absent or damaged but there are residual nerve fibers. The device electrically stimulates the COCHLEAR NERVE to create sound sensation.
An accumulation of ENDOLYMPH in the inner ear (LABYRINTH) leading to buildup of pressure and distortion of intralabyrinthine structures, such as COCHLEA and SEMICIRCULAR CANALS. It is characterized by SENSORINEURAL HEARING LOSS; TINNITUS; and sometimes VERTIGO.
The transference of BONE MARROW from one human or animal to another for a variety of purposes including HEMATOPOIETIC STEM CELL TRANSPLANTATION or MESENCHYMAL STEM CELL TRANSPLANTATION.
Three-dimensional representation to show anatomic structures. Models may be used in place of intact animals or organisms for teaching, practice, and study.
The grafting of bone from a donor site to a recipient site.
Surgery performed on the ear and its parts, the nose and nasal cavity, or the throat, including surgery of the adenoids, tonsils, pharynx, and trachea.
A delicate membrane enveloping the brain and spinal cord. It lies between the PIA MATER and the DURA MATER. It is separated from the pia mater by the subarachnoid cavity which is filled with CEREBROSPINAL FLUID.
The separation and isolation of tissues for surgical purposes, or for the analysis or study of their structures.
A spiral thickening of the fibrous lining of the cochlear wall. Spiral ligament secures the membranous COCHLEAR DUCT to the bony spiral canal of the COCHLEA. Its spiral ligament fibrocytes function in conjunction with the STRIA VASCULARIS to mediate cochlear ion homeostasis.
A nonspecific symptom of hearing disorder characterized by the sensation of buzzing, ringing, clicking, pulsations, and other noises in the ear. Objective tinnitus refers to noises generated from within the ear or adjacent structures that can be heard by other individuals. The term subjective tinnitus is used when the sound is audible only to the affected individual. Tinnitus may occur as a manifestation of COCHLEAR DISEASES; VESTIBULOCOCHLEAR NERVE DISEASES; INTRACRANIAL HYPERTENSION; CRANIOCEREBRAL TRAUMA; and other conditions.
Surgical reconstruction of the hearing mechanism of the middle ear, with restoration of the drum membrane to protect the round window from sound pressure, and establishment of ossicular continuity between the tympanic membrane and the oval window. (Dorland, 28th ed.)
Synthetic or natural materials for the replacement of bones or bone tissue. They include hard tissue replacement polymers, natural coral, hydroxyapatite, beta-tricalcium phosphate, and various other biomaterials. The bone substitutes as inert materials can be incorporated into surrounding tissue or gradually replaced by original tissue.
Sensorineural hearing loss which develops suddenly over a period of hours or a few days. It varies in severity from mild to total deafness. Sudden deafness can be due to head trauma, vascular diseases, infections, or can appear without obvious cause or warning.
The upper chamber of the COCHLEA that is filled with PERILYMPH. It is connected to SCALA TYMPANI via helicotrema at the apex of the cochlea.
A form of pneumoconiosis resulting from inhalation of iron in the mining dust or welding fumes.
Breaks in bones.
An illusion of movement, either of the external world revolving around the individual or of the individual revolving in space. Vertigo may be associated with disorders of the inner ear (EAR, INNER); VESTIBULAR NERVE; BRAINSTEM; or CEREBRAL CORTEX. Lesions in the TEMPORAL LOBE and PARIETAL LOBE may be associated with FOCAL SEIZURES that may feature vertigo as an ictal manifestation. (From Adams et al., Principles of Neurology, 6th ed, pp300-1)
The inferior region of the skull consisting of an internal (cerebral), and an external (basilar) surface.
An oval, bony chamber of the inner ear, part of the bony labyrinth. It is continuous with bony COCHLEA anteriorly, and SEMICIRCULAR CANALS posteriorly. The vestibule contains two communicating sacs (utricle and saccule) of the balancing apparatus. The oval window on its lateral wall is occupied by the base of the STAPES of the MIDDLE EAR.

Spontaneous CSF otorrhea caused by abnormal development of the facial nerve canal. (1/406)

In two patients with surgically proved CSF fistula through the facial nerve canal, MR and CT examinations showed smooth enlargement of the geniculate fossa with CSF signal. In the clinical setting of CSF otorrhea or rhinorrhea, the presence of an enlarged labyrinthine facial nerve canal and enlarged geniculate fossa on CT scans and CSF intensity on MR images strongly suggests a CSF fistula through the facial nerve canal.  (+info)

Evaluation of CSF leaks: high-resolution CT compared with contrast-enhanced CT and radionuclide cisternography. (2/406)

BACKGROUND AND PURPOSE: Radiologic evaluation of CSF leaks is a diagnostic challenge that often involves multiple imaging studies with the associated expense and patient discomfort. We evaluated the use of screening noncontrast high-resolution CT in identifying the presence and site of CSF rhinorrhea and otorrhea and compared it with contrast-enhanced CT cisternography and radionuclide cisternography. METHODS: We retrospectively reviewed the imaging studies and medical records of all patients who were evaluated for CSF leak during a 7-year period. Forty-two patients with rhinorrhea and/or otorrhea underwent high-resolution CT of the face or temporal bone and then had CT cisternography and radionuclide cisternography via lumbar puncture. The results of the three studies were compared and correlated with the surgical findings in 21 patients. RESULTS: High-resolution CT showed bone defects in 30 of 42 patients (71%) with CSF leak. High-resolution, radionuclide cisternography and CT cisternography did not show bone defects or CSF leak for 12 patients (29%) who had clinical evidence of CSF leak. Among the 30 patients with bone defects, 20 (66%) had positive results of their radionuclide cisternography and/or CT cisternography. For the 21 patients who underwent surgical exploration and repair, intraoperative findings correlated with the defects revealed by high-resolution CT in all cases. High-resolution CT identified significantly more patients with CSF leak than did radionuclide cisternography and CT cisternography, with a moderate degree of agreement. CONCLUSION: Noncontrast high-resolution CT showed a defect in 70% of the patients with CSF leak. No radionuclide cisternography or CT cisternography study produced positive results without previous visualization of a defect on high-resolution CT. CT cisternography and radionuclide cisternography may be reserved for patients in whom initial high-resolution CT does not identify a bone defect or for patients with multiple fractures or postoperative defects.  (+info)

The functional shift of the mandible in unilateral posterior crossbite and the adaptation of the temporomandibular joints: a pilot study. (3/406)

Changes in the functional shift of the mandibular midline and the condyles were studied during treatment of unilateral posterior crossbite in six children, aged 7-11 years. An expansion plate with covered occlusal surfaces was used as a reflex-releasing stabilizing splint during an initial diagnostic phase (I) in order to determine the structural (i.e. non-guided) position of the mandible. The same plate was used for expansion and retention (phase II), followed by a post-retention phase (III) without the appliance. Before and after each phase, the functional shift was determined kinesiographically and on transcranial radiographs by concurrent recordings with and without the splint. Transverse mandibular position was also recorded on cephalometric radiographs. Prior to phase I, the mandibular midline deviated more than 2 mm and, in occlusion (ICP), the condyles showed normally centred positions in the sagittal plane. With the splint, the condyle on the crossbite side was displaced 2.4 mm (P < 0.05) forwards compared with the ICP, while the position of the condyle on the non-crossbite side was unaltered. After phase III, the deviation of the midline had been eliminated. Sagittal condylar positions in the ICP still did not deviate from the normal, and the splint position was now obtained by symmetrical forward movement of both condyles (1.3 and 1.4 mm). These findings suggest that the TMJs adapted to displacements of the mandible by condylar growth or surface modelling of the fossa. The rest position remained directly caudal to the ICP during treatment. Thus, the splint position, rather than the rest position should be used to determine the therapeutic position of the mandible.  (+info)

Supporting cells contribute to control of hearing sensitivity. (4/406)

The mammalian hearing organ, the organ of Corti, was studied in an in vitro preparation of the guinea pig temporal bone. As in vivo, the hearing organ responded with an electrical potential, the cochlear microphonic potential, when stimulated with a test tone. After exposure to intense sound, the response to the test tone was reduced. The electrical response either recovered within 10-20 min or remained permanently reduced, thus corresponding to a temporary or sustained loss of sensitivity. Using laser scanning confocal microscopy, stimulus-induced changes of the cellular structure of the hearing organ were simultaneously studied. The cells in the organ were labeled with two fluorescent probes, a membrane dye and a cytoplasm dye, showing enzymatic activity in living cells. Confocal microscopy images were collected and compared before and after intense sound exposure. The results were as follows. (1) The organ of Corti could be divided into two different structural entities in terms of their susceptibility to damage: an inner, structurally stable region comprised of the inner hair cell with its supporting cells and the inner and outer pillar cells; and an outer region that exhibited dynamic structural changes and consisted of the outer hair cells and the third Deiters' cell with its attached Hensen's cells. (2) Exposure to intense sound caused the Deiters' cells and Hensen's cells to move in toward the center of the cochlear turn. (3) This event coincided with a reduced sensitivity to the test tone (i.e., reduced cochlear microphonic potential). (4) The displacement and sensitivity loss could be reversible. It is concluded that these observations have relevance for understanding the mechanisms behind hearing loss after noise exposure and that the supporting cells take an active part in protection against trauma during high-intensity sound exposure.  (+info)

A gene for fluctuating, progressive autosomal dominant nonsyndromic hearing loss, DFNA16, maps to chromosome 2q23-24.3. (5/406)

The sixteenth gene to cause autosomal dominant nonsyndromic hearing loss (ADNSHL), DFNA16, maps to chromosome 2q23-24.3 and is tightly linked to markers in the D2S2380-D2S335 interval. DFNA16 is unique in that it results in the only form of ADNSHL in which the phenotype includes rapidly progressing and fluctuating hearing loss that appears to respond to steroid therapy. This observation suggests that it may be possible to stabilize hearing through medical intervention, once the biophysiology of deafness due to DFNA16 is clarified. Especially intriguing is the localization of several voltage-gated sodium-channel genes to the DFNA16 interval. These cationic channels are excellent positional and functional DFNA16 candidate genes.  (+info)

MRI examination of the masticatory muscles in the gray wolf (Canis lupus), with special reference to the M. temporalis. (6/406)

We examined the head of the gray wolf (Canis lupus) using MRI methods. Although the arising surface of the M. temporalis was not so enlarged in the frontal bone, the small frontal bone did not disturb the M. temporalis from occupying the lateral space of the frontal area in the gray wolf as in the domesticated dog. In the gray wolf, it is suggested that the M. temporalis may not be well-developed in terms of size of arising area, but in the thickness of running bundles. We suggest that the dog has changed the three-dimensional plan of the M. temporalis during the domestication and that the M. temporalis has developed a large arising surface in the frontal bone and lost the thickness of belly in the frontal area in accordance with the enlargement of the frontal bone and the increase in brain size.  (+info)

Chondroblastoma of the temporal bone: a clinicopathologic study of five cases. (7/406)

Chondroblastoma is a rare benign bone tumor. It commonly affects the epiphysis of long bones during the second and third decades of life. Chondroblastoma of the temporal bone is extremely rare. We reviewed five cases of chondroblastoma arising in the temporal bone. Four cases were female and one was male. The ages ranged from 41 to 60 years (mean, 53.6 years). All cases involved the temporal bone. Three involved the left side and two the right. Chief complaints were long-standing localized pain and hearing difficulty. A sharply demarcated lobulated mass was the main radiological finding. Microscopic findings were those of chondroblastoma of usual locations. Two cases showed aneurysmal bone cyst-like areas. Immunohistochemical studies for CD34, CD99, S-100 protein and cytokeratin were performed. Tumor cells were diffusely positive for S-100 protein in three cases and weakly positive for cytokeratin in one case. CD34 and CD99 were negative in all cases. In summary, chondroblastoma of the temporal bone is rare and occurs in older age group than reported cases of chondroblastoma of the usual location in the literature.  (+info)

Sound- and pressure-induced vertigo associated with dehiscence of the roof of the superior semicircular canal. (8/406)

In many types of peripheral vertigo, imaging is not part of the initial evaluation. We present a patient with sound- and pressure-induced vertigo associated with bony dehiscence of the roof of the superior semicircular canal. The diagnosis of this new entity can only be made by high-resolution coronal CT imaging of the temporal bones. In patients with this symptom complex, CT should be performed early in the diagnostic workup.  (+info)

TY - JOUR. T1 - Cochlear Histopathologic Findings in Patients With Systemic Lupus Erythematosus. T2 - A Human Temporal Bone Study. AU - Kariya, Shin. AU - Kaya, Serdar. AU - Hizli, Ömer. AU - Hizli, Pelin. AU - Nishizaki, Kazunori. AU - Paparella, Michael M.. AU - Cureoglu, Sebahattin. PY - 2016/4/2. Y1 - 2016/4/2. N2 - HYPOTHESIS:: We hypothesized that, in archived human temporal bone samples from patients with systemic lupus erythematosus (SLE), a pathologic condition exists in the stria vascularis and cochlear hair cells. BACKGROUND:: Sensorineural hearing loss is a common feature in SLE patients. However, the pathophysiologic mechanism of cochlear dysfunction is unclear. METHODS:: We examined 15 temporal bone samples from 8 SLE patients, along with 17 samples from 10 age-matched healthy control patients. The samples were serially sectioned in the horizontal plane and stained with hematoxylin and eosin. We determined the area of the stria vascularis in a midmodiolar section of each cochlear ...
Tegmen tympani of temporal bone aka Tegmen tympani ossis temporalis in the latin terminology and part of overview of the structures of the outer ear and auditory tube. Learn more now!
Looking for online definition of articular surface of mandibular fossa of temporal bone in the Medical Dictionary? articular surface of mandibular fossa of temporal bone explanation free. What is articular surface of mandibular fossa of temporal bone? Meaning of articular surface of mandibular fossa of temporal bone medical term. What does articular surface of mandibular fossa of temporal bone mean?
TY - JOUR. T1 - Anatomy and Surgical Approach of the Ear and Temporal Bone. AU - Isaacson, Brandon. N1 - Publisher Copyright: © 2018, Springer Science+Business Media, LLC, part of Springer Nature.. PY - 2018/9/1. Y1 - 2018/9/1. N2 - The temporal bone is one of the more complex structures at the skull base that houses the hearing and vestibular organs, numerous nerves, and vessels. A host of inflammatory and neoplastic processes can occur within the temporal bone that often necessitate permanent and frozen section pathologic examination. A number of simple to complex surgical procedures are used to manage temporal bone pathology. This chapter will provide a brief overview of normal temporal bone anatomy, common surgical approaches, normal histology, and indications for pathologic examination.. AB - The temporal bone is one of the more complex structures at the skull base that houses the hearing and vestibular organs, numerous nerves, and vessels. A host of inflammatory and neoplastic processes ...
Looking for online definition of anterior surface of petrous part of temporal bone in the Medical Dictionary? anterior surface of petrous part of temporal bone explanation free. What is anterior surface of petrous part of temporal bone? Meaning of anterior surface of petrous part of temporal bone medical term. What does anterior surface of petrous part of temporal bone mean?
Vestibular schwannoma (VS) usually present the widening of internal auditory canal (IAC), and these bony changes are typically limited to IAC, not extend to temporal bone. Temporal bone invasion by VS is extremely rare. We report 51-year-old man who revealed temporal bone destruction beyond IAC by unilateral VS. The bony destruction extended anteriorly to the carotid canal and inferiorly to the jugular foramen. On histopathologic examination, the tumor showed typical benign schwannoma and did not show any unusual vascularity or malignant feature. Facial nerve was severely compressed and distorted by tumor, which unevenly eroded temporal bone in surgical field. Vestibular schwannoma with atypical invasion of temporal bone can be successfully treated with combined translabyrinthine and lateral suboccipiral approach without facial nerve dysfunction. Early detection and careful dissection of facial nerve with intraoperative monitoring should be considered during operation due to severe adhesion and ...
TY - JOUR. T1 - Herniation of an enlarged middle cerebral artery through a temporal bone defect in association with an arteriovenous malformation. AU - Raley, Darryl Alan. AU - Davidson, Andrew Stewart. AU - Morgan, Michael Kerin. PY - 2012/11. Y1 - 2012/11. N2 - We present a previously undescribed variant of the middle cerebral artery (MCA) protruding through a defect in the temporal bone, associated with a large arteriovenous malformation (AVM). The patient, a 59-year-old male, presented with a large right frontoparietal AVM with feeding aneurysms and a recent haemorrhage. Preoperative imaging demonstrated a tortuous right MCA feeder abutting the anterosuperior temporal bone in the region of the pterion. An associated temporal bone defect was visible. The patient underwent a pterional craniotomy for surgical clipping of aneurysms associated with the AVM. On reflection of the temporalis muscle, the MCA branch was transected as it coursed through a defect in the temporal bone. This patient ...
The temporal bones are at the sides and base of the skull. They protect the structures of the inner ear. The lower seven cranial nerves move along the inside of the temporal bones. The main blood vessels to and from the brain also move along the inside of the temporal bone. The temporal bones are not the same in all mammals. The inner ear is usually not protected in marsupials, and in other placentals it is protected by a structure called the auditory bulla. ...
Provides a step-by-step approach to learning the anatomy and principal procedures of temporal bone dissection starting with mastoidectomy and including approaches to the internal auditory canal and jugular foramen.
Running a course is really simple to do. Any surgeon familiar with the surgical anatomy and operative procedures such as cortical and radical mastoidectomy, posterior tympanotomy, and exposure of the facial nerve can do so.. Free temporal bone dissection manuals and guides. ...
ICD-10-PCS code 0NU54KZ for Supplement Right Temporal Bone with Nonautologous Tissue Substitute, Percutaneous Endoscopic Approach is a medical classification as listed by CMS under Head and Facial Bones range.
Temporal Bone Fractures - Etiology, pathophysiology, symptoms, signs, diagnosis & prognosis from the Merck Manuals - Medical Professional Version.
1. External acoustic meatus of temporal bone 2. Frontal border of parietal bone 3. Mandibular fossa of temporal bone 4. Mastoid process of temporal bone 5.
TY - JOUR. T1 - Bulloughs bump. T2 - Unusual protuberant fibro-osseous tumor of the temporal bone. case report. AU - Jiang, Bowen. AU - Mushlin, Harry. AU - Zhang, Lei. AU - James, Aaron. AU - Cohen, Alan. PY - 2018/2/1. Y1 - 2018/2/1. N2 - Scalp and calvarial masses are common in children and the differential diagnosis is broad. The authors recently cared for a child with an unusual fibro-osseous lesion of the temporal bone that has previously not been described in the pediatric neurosurgery literature. A 10-year-old girl presented with a firm, slowly enlarging protuberant mass arising from the squamous suture of the temporal bone without intracranial extension. The mass was removed en bloc through a temporal craniectomy and cranioplasty was performed. The patient had a smooth postoperative course. Histological examination showed multiple oval osseous islands dispersed throughout a bland fibrous stroma. The pathological diagnosis was Bulloughs bump, a rare, benign fibro-osseous neoplasm ...
This paper presents a method to identify the bone regions encountered during a temporal bone dissection. This should aid the otolaryngologist in the identification of anatomical landmarks whilst training and performing surgical procedures. The approach adopts the mel frequency cepstrum coefficients and the Mahalanobis distance metric to indentify the temporal bone regions from the acoustic signature of the surgical drill. Audio data from a mastoidectomy, that involved the dissection of the sigmoid sinus, thin tegmen and thick tegmen bone regions with diamond and cutting type burrs of sizes 6mm, 3mm and 1mm were analysed. An identification accuracy of 97.72 ± 1.77 % was achieved with the mel frequency cepstrum approach. This is a significant improvement over the previous approach that utilises the power spectral density and the correlation coefficient to identify the same bone regions only 90.59 ± 1.58 % of the time. Three case studies were considered as a feasibility study for the
The course has additional interest to demonstrate techniques which have been used increasingly in current clinical practice, such as intra-operative electrophysiological monitoring of the facial nerve.. Another aspect to note is the availability of at least three temporal bones fresh (not frozen and preserved in formaldehyde), which highly values the anatomical exhibition and conservation of structures that will expose and dissect.. Objectives ...
Temporal bone of the human skull. The temporal bones are situated at the sides and base of the skull. Labels: 1, squamous portion; 2, placed below external opening of auditory canal in petrous portion; 3, placed below mastoid portion; 4, placed below glenoid cavity for reception of condyle of lower jaw.. ...
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Zobacz szczeg y ksi ki pt. Temporal Bone napisanej przez M. Sanna. Temporal Bone to Medycyna i zdrowie wydany w 2005 roku. Zobacz recenzje i opinie naszych u ytkownik w o tej ksi ce.
As part of the ongoing periodical surveillance arranged by his haematologist, the pilot underwent a neck, chest and abdomen CT scan on 6 May 2014 prior to his annual medical. The pilot subsequently telephoned to inform me that the radiologist had diagnosed Eagles syndrome. The CT scan reported: There is an incidental finding of an elongated partially calcified left stylohyoid ligament (known as eagle syndrome). The pilot added that his haematologist had conducted a preliminary search about Eagles syndrome, which raised concerns about potential complications and as a result his haematologist referred him to a vascular surgeon.. The first three webpages generated by a Google™ search of Eagles syndrome indicated that potential complications could include transient ischaemic attacks, carotid artery dissection, syncope and sudden death.2-4. Eagles syndrome (or Eagle syndrome) was named after an American otolaryngologist, Watt Eagle who wrote a number of papers linking various symptoms ...
Bone studies one and two showed adults increase bone density in one year or less with AlgaeCal formulations, but the question of what happened to bone density in years following remained unanswered. This study showed women in their mid 60s gained 7.3% more bone over 7 years - and that it happened in a linear fashion with about 1% added per year. Safety was well established by a panel of 45 blood chemistries drawn at baseline and ending. This is significant given recent studies suggesting traditional calcium supplements may increase cardiovascular risks.. This study was published in the Journal of the American College of Nutrition in February 2016.. ...
The site of injury to the facial nerve frequently is found in the area of the geniculate ganglion, although there may be additional injury in the mastoid segment in about 20% of cases. ...
The temporal bone is located at the lower sides of the skull and directly underneath the temple. It consists of four separate pieces: the tympanic part, petrous portion, mastoid portion, and the squama temporalis. The squama temporalis is so thin that it is translucent. Scaly in appearance, the temporalis muscles
Groove for sigmoid sinus of temporal bone aka Sulcus sinus sigmoidei ossis temporalis in the latin terminology and part of structures seen on the midsagittal section of the skull. Learn more now!
These serial scans illustrate the progression of intracerebral bleeds in this case following traumatic brain injury. Collateral history revealed a history of significant alcohol intake and previous seizures in the context of withdrawal.
Skull Anatomy Mnemonic (1/3): Bone Tutorial- Neurocranium: Sphenoid Ethmoid Parietal Temporal Bones - lesson plan ideas from Spiral.
Book 3T MRI Scan Temporal Bone starting at ₹ 4000 at 5 certified diagnostic lab(s) in Faridabad including at City Xray, Indraprastha Apollo, N2 Imaging. Book online or call now.
Abstract: Basal cell carcinomas involving the ear represent a spectrum of diseases, from a small superficial auricular lesion to an advanced destructive malignancy invading the temporal bone. The biologic activity of the morphea-form basal cell carcinoma variant of tumor and a postauricular location predispose to an aggressive biologic pattern. Management requires a thorough evaluation with determination of the degree of cranial and possible intracranial invasion. These lesions usually can be managed with partial temporal bone resections, although prognosis for patients with advanced lesions may be poor ...
COCH mRNA could be amplified as much as 976 bp in all three frozen specimens. By contrast, it was amplified to 249 bp in two of the three formalin-fixed specimens, with no amplification observed in the remaining. The quantity of amplifiable GAPDH mRNA in the formalin specimens was only 1% of that of …
The tympanic ring is an incomplete circle, in the concavity of which is a groove, the tympanic sulcus, for the attachment of the circumference of the eardrum (tympanic membrane). This ring expands to form the tympanic part, and is ossified in membrane from a single center which appears about the third month. The styloid process is developed from the proximal part of the cartilage of the second branchial or hyoid arch by two centers: one for the proximal part, the tympanohyal, appears before birth; the other, comprising the rest of the process, is named the stylohyal, and does not appear until after birth. The tympanic ring unites with the squama shortly before birth; the petromastoid part and squama join during the first year, and the tympanohyal portion of the styloid process about the same time [Fig. 7, 8]. The stylohyal does not unite with the rest of the bone until after puberty, and in some skulls never at all ...
The styloid process can be clearly seen in the Kaitio bone. Prof Carol Ward and her colleagues note that a lack of the styloid process created challenges for apes and earlier humans when they attempted to make and use tools. This lack of a styloid process may have increased the chances of having arthritis earlier.. Prof Ward, professor of pathology and anatomical sciences at the University of Missouri, Columbia, said: The styloid process reflects an increased dexterity that allowed early human species to use powerful yet precise grips when manipulating objects. This was something that their predecessors couldnt do as well due to the lack of this styloid process and its associated anatomy.. With this discovery, we are closing the gap on the evolutionary history of the human hand. This may not be the first appearance of the modern human hand, but we believe that it is close to the origin, given that we do not see this anatomy in any human fossils older than 1.8 million years. Our specialised, ...
Diagnosis is suspected when a patient presents with the symptoms of the classic form of Eagle syndrome e.g. unilateral neck pain, sore throat or tinnitus. Sometimes the tip of the styloid process is palpable in the back of the throat. The diagnosis of the vascular type is more difficult and requires an expert opinion. One should have a high level of suspicion when neurological symptoms occur upon head rotation. Symptoms tend to be worsened on bimanual palpation of the styloid through the tonsillar bed. They may be relieved by infiltration of lidocaine into the tonsillar bed. Because of the proximity of several large vascular structures in this area this procedure should not be considered to be risk free. Imaging is important and is diagnostic. Visualizing the styloid process on a CT scan with 3D reconstruction is the suggested imaging technique.[8] The enlarged styloid may be visible on an orthopantogram or a lateral soft tissue X ray of the neck. It is worth noting that the styloid may be ...
BERRA, Paola et al. Pediatric pathology of temporal bone: characteristic tomographic findings. Rev. argent. radiol. [online]. 2012, vol.76, n.2, pp. 133-141. ISSN 1852-9992.. The temporal bone is the seat of frequent otologic disorders in children. Objective. To report the statistics and description of characteristic computed tomography (CT) findings of temporal bone pathology in a pediatric population. Material and Methods. Retrospective, longitudinal and descriptive review of 64 medical records taken between January 2008 and April 2011 at the Pediatric Hospital Pedro Elizalde. The classification of diseases was: inflammatory (infectious and noninfectious), congenital, histiocytosis, tumor infiltration and traumatic. Results. Males: 64%, age range: 1 month to 14 years (mean: 6.1 years). We found 53% inflammatory infectious conditions, 36% inflammatory noninfectious, 4.6% congenital, 1.5% histiocytosis, 3% tumor infiltration, and 1.5% traumatic. Infections disease was the most prevalent ...
ABSTRACT: In this study, the authors investigated the link between jaw clenching/bruxism and temporal bone movement associated with multiple sclerosis (MS). Twenty-one subjects participated in this study (10 patients with MS and 11 controls). To quantify the change in intracranial dimension between the endocranial surfaces of the temporal bones during jaw clenching, an ultrasonic pulsed phase locked loop (PPLL) device was used. A sustained jaw clenching force of 100 lbs was used to measure the mean change in acoustic pathlength (∆L) as the measure of intracranial distance. In the control subjects the mean ∆L was 0.27 mm±0.24. In subjects with MS the mean ∆L was 1.71 mm±1.18 (p , 0.001). The increase in magnitude of bi-temporal bone intracranial expansion was approximately six times greater in subjects with MS compared to controls. Therefore, jaw clenching/bruxism is associated with more marked displacement of the temporal bones and expansion of the cranial cavity in patients with MS than ...
Can you imagine a world where sound could be heard by all who wanted to hear? Anyone who desired to experience the melodic sounds of music and nature could have the chance without complica. Fortunately, due to medical research and breakthroughs in the industry, combined with the support and generosity of passionate individuals, this scenario is not entirely far from becoming a reality.. In June of 2015, the Norfolk Sertoma Club made its largest gift to date, which funded a temporal bone research lab at Eastern Virginia Medical School (EVMS).. The $150,000 donation helped fund the labs eight training stations, which include video monitors, microscopes, temporal bone holders, and equipment designed to provide education related to surgical techniques within the temporal bone anatomy.. The lab opened in September 2015 and has been used by both medical staff and students. In addition to surgical skills training, the lab is used for printing 3D images, testing bone cements and similar products used ...
On a worldwide basis, there are only a few case reports of otopathology in patients with genetic deafness where the precise genetic mutation was known. Given the variant clinical expressions of syndromes of genetic deafness, it becomes urgent to provide pathologic profiles that can be matched to the genetic abnormalities. Without this knowledge, it will be difficult to ultimately devise strategies for overcoming the genetic defects. Animal models, including knockouts, knockins, and naturally occurring mutants are being increasingly used to investigate the genetics of hearing loss. Such models can provide valuable information regarding the molecular bases of auditory and vestibular disorders, but remains important to verify the validity of these models by comparison with the otopathology as determined in human cases ...
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This Sliding Bar can be switched on or off in theme options, and can take any widget you throw at it or even fill it with your custom HTML Code. Its perfect for grabbing the attention of your viewers. Choose between 1, 2, 3 or 4 columns, set the background color, widget divider color, activate transparency, a top border or fully disable it on desktop and mobile ...
2 - Due to compression of the carotid arteries. Cranial nerve impingement symptoms typically include facial pain when turning the head, dysphagia, foreign body sensation, pain on extending the tongue, change in voice, sensation of hypersalivization, and/or tinnitus/otalgia. On palpation of the styloid process tips, symptoms should ideally be exaggerated.. Arterial impingement symptoms include mechanical compression which would result in visual symptoms, syncope, carotid dissection, or sympathetic plexus irritation (carotodynia) such as eye pain or parietal pain.. Radiographic features of Eagle syndrome include styloid processes longer than 3cm which can be either unilateral or bilateral. Sometimes, styloid processes are elongated or the stylohyoid ligament is calcified.. Typical treatment includes transpharyngeal injection of steroids/local anesthetic agents. Severe cases would involve surgical excision either via transoral approach or a lateral approach. Transoral approach has the disadvantage ...
A new perimodiolar electrode array, the curly-with stylet (CwS), has been developed and undergone safety trials in human cadaver temporal bones. The array was developed as a result of animal and modelling studies which indicated that there are potential advantages in situating the electrode array in closer proximity to the neural elements. Preliminary studies with four patients in Melbourne implanted with a developmental pre-curved array had supported the predictions of lower current requirements and possibly more focussed spread of excitation ...
I started out treatment with Standing Supported Wall Squat and Reach and Modified All Four Belly Lift which resulted in about a 50% improvement in his testing. I then had him remove his Invisalign retainer and his testing went to neutral. However, he was unable to reciprocally find his bite. This means he was unable to make contact on one side of his molars without contact on the other side. Regarding his cranio-mandibular positioning, his mandible was centered and his cant seemed fairly even (it may have been being marginally higher on the right). His right temporal bone was observed to be in a little more external rotation/flexion compared to his left. For those that have taken Cervical Revolution, this indicates he may be in a right torsion cranial pattern but it appeared mild. His bite was Class 1 with canine guidance during full laterotrusion and no interferences bilaterally. This means he had good occlusion and range of motion ...
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A bone biopsy arrangement especially suited for use in obtaining axial skeleton trephine samples from the spinal vertebra centrum of a living test specimen in a safe and rapid manner. The disclosed arrangement uses radiographic mapping, precise mechanical control of the trephine with an apparatus disclosed in detail, conventional trephine energizing and a test specimen such as a rhesus monkey. Improved quality plural samples from a single test subject that were heretofore considered too inaccessible and dangerous for practicality are achieved.
CHINA – Humans have been farming cattle longer than previously thought, a study of cattle bones in north eastern China has revealed.
Either of a pair of compound bones forming the lateral (left and right) surfaces and base of the skull which contains the organs of hearing. It is a large bone formed by the fusion of parts: the squamous (the flattened anterior-superior part), the tympanic (the curved anterior-inferior part), the mastoid (the irregular posterior portion), and the petrous (the part at the base of the skull ...
Sie sind hier: Computed tomography of the inner ear: size of anatomical structures in the normal temporal bone and in the temporal bone of patients with Menieres disease. ...
TY - JOUR. T1 - Langerhans cell histiocytosis of the temporal bone. T2 - A review of 29 cases at a single center. AU - Modest, Mara C.. AU - Garcia, Joaquin J.. AU - Arndt, Carola A.S.. AU - Carlson, Matthew L.. PY - 2016/8/1. Y1 - 2016/8/1. N2 - Objectives/Hypothesis: Evaluate presentation, management, and clinical outcomes of patients with temporal bone Langerhans cell histiocytosis (LCH). Study Design: Retrospective chart review. Methods: Reviewed all patients with temporal bone LCH at a tertiary academic referral center between 1978 and 2014. Presentation, disease course, intervention, and clinical outcomes were analyzed. Results: Between 1978 and 2014, 29 temporal bones in 20 patients (12 males; median age 32 years, range 1.3-88 years) were diagnosed with temporal bone LCH, representing 4% of all patients diagnosed with LCH at our institution during that time. Twelve (60%) patients presented purely with head and neck disease, nine (45%) with bilateral temporal bone involvement, seven (35%) ...
TY - JOUR. T1 - Ontogenetic change in temporal bone pneumatization in humans. AU - Hill, Cheryl A. PY - 2011/7. Y1 - 2011/7. N2 - Pneumatization of the temporal bone is often included in descriptions of fossils and as a phylogenetic marker, but a number of questions about the evolution, growth, and development of the trait remain. Many studies have analyzed temporal bone pneumatization from a clinical perspective, but a systematic quantification of normal development of pneumatized spaces has not been conducted. In this study, ontogenetic change in the size and organization of temporal bone pneumatization is analyzed in a cross-sectional sample of humans. High resolution computed tomography scans of the temporal bone were acquired from a cross-sectional sample of humans (N = 28). Bone volume fractions, anisotropy, trabecular number, trabecular thickness, surface area, and volume were analyzed to provide information about the organization and size of pneumatized spaces across ontogeny. The ...
The mastoid of human temporal bone contains numerous air cells connected to each others. In order to gain further knowledge about these air cells, a more compact representation is needed to obtain an estimate of the size distribution of these cells. Already existing skeletonization methods often fail in producing a faithful skeleton mostly due to noise hampering the binary representation of the data. This paper proposes a different approach by extracting geometrical information embedded in the Euclidean distance transform of a volume via a structure tensor analysis based on quadrature filters, from which a secondary structure tensor allows the extraction of surface skeleton along with a curve skeleton from its eigenvalues. Preliminary results obtained on a X-ray micro-CT scans of a human temporal bone show very promising results.. ...
TY - JOUR. T1 - Metastases to temporal bones from primary nonsystemic malignant neoplasms. AU - Gloria-Cruz, Teresa I.. AU - Schachern, Patricia A.. AU - Paparella, Michael M.. AU - Adams, George L.. AU - Fulton, Sherry E.. N1 - Copyright: Copyright 2018 Elsevier B.V., All rights reserved.. PY - 2000/2. Y1 - 2000/2. N2 - Objectives: To compare histopathological and clinical findings of metastasis to the temporal bone with previous reports and to determine the prevalence of these metastases in patients with nonsystemic cancer. Study Design: Retrospective. Methods: Autopsy records of 864 patients were screened to select those with primary nondisseminated malignant neoplasms. These were evaluated histopathologically for metastasis to and site of involvement within the temporal bone, and histological characteristics of the tumor. Clinical records and autopsy reports were reviewed for demographic data, clinical course, otologic and vestibular manifestations, site of primary and its histological ...
The National Temporal Bone, Hearing, and Balance Pathology Resource Registry, which is sponsored by the National Institute on Deafness and Other Communication Disorders, promotes research into hearing and balance disorders through the study of the temporal bone and related brain structures. The registry maintains a computerized database of all U.S. temporal bone collections,
Primary cancers of the ear canal are rare; however, when they do occur, basal cell carcinomas (BCCs) and squamous cell carcinomas (SCCs) are the typical culprits. Cancers involving the outer ear (pinna) are more common and arise due to sun exposure (especially common in the desert Southwest). Dermatologists typically manage routine skin cancers of the outer ear; however, large tumors require multi-disciplinary care including a neurotologist. BCCs and SCCs arising in the temporal bone (ear canal) occur spontaneously and can spread quickly to adjacent areas like the parotid gland (salivary gland anterior to the ear canal), the neck (inferior to the ear canal), the middle ear (deep/medial to the ear canal) or the mastoid (posterior to the ear canal). Significant delays in treatment can result in metastases to other locations throughout the body.. If ear cancer is suspected, a biopsy of the lesion is performed to confirm the diagnosis. Imaging studies such as temporal bone CT scans, PET scans, ...
The advances of medicine in the past two decades have been very rapid and exciting and hand in hand with this has gone advances in audiovisual aids and teaching. The technology that has brought the computer into most households has been truly amazing particularly for those of us who lived before the birth of the computer. This has led to a revolution in information technology and inter-communication. The world now seems a very small place, the Internet and the World Wide Web has ensured that this is the case but it has also led to the instant availability of a vast sea of knowledge about all aspects of life.. There are now new horizons in audio-visual technology and these can be utilised to teach both undergraduates and postgraduates. There are some that would say that the old fashioned apprenticeship is the gold standard in surgery but this CD-ROM by Blevins, Jackler, and Gralapp is an attempt to use computer technology to teach young surgeons the anatomy of the temporal bone and temporal bone ...
Define tympanic cavity. tympanic cavity synonyms, tympanic cavity pronunciation, tympanic cavity translation, English dictionary definition of tympanic cavity. n. A large, irregularly shaped cavity of the middle ear. American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton...
Bone remodeling within the otic capsule has been reported to be inhibited especially at or near the cochlea, except under some pathological conditions such as otosclerosis, Pagets disease, or mastoiditis, when bone remodeling can occur. Microcavitations found in periosteal and endosteal layers of human temporal bone specimens without otosclerosis, Pagets disease, or inflammation as reported in the current study are consistent with osteoclastic bone resorption. Thirty-three temporal bones from 33 patients were prepared for light microscopy and classified into 4 groups: histologically proven dehiscence of the superior semicircular canal (SSCD) (n = 3, group 1), age 20 years or younger (n = 10, group 2), age 90 years or older and with otosclerosis (n = 10, group 3), and age 90 years or older without otosclerosis (n = 10, group 4 ...
Topical treatment of several inner ear diseases through the round window membrane (RWM) might be feasible in the near future. Bacteria toxins, ototoxic drugs and noise trauma seem to harm the inner ear by a common pathway which involves, excessive outflow of the afferent neurotransmitter glutamate and formation of nitric oxide (NO), which can severely damage cells/nerve endings and lead to cell death.. In this study we used 98 Sprague-Dawley rats and seven human temporal bones. Various substances were instilled into the middle ear of the rat, such as Pseudomonas Aeruginosa Exotoxin (PaExoA), gentamicin, NO-inhibitor N-Omega-Nitro-L-Arginine Methyl Ester (L-NAME), and glucocorticoids. The effects of the substances were studied by morphological analysis of RWM and the endolymphatic sac (ES) by light and electron microscopic. Hearing level was measured in the rats by ABR technique. The human temporal bones were studied immunomorphologically to search for glutamate.. In the human inner ear, ...
hey may injure the otic capsule or the internal auditory canal and are more likely to cause a profound sensorineural hearing loss and a loss of vestibular function with severe vertigo and nystagmus. ...
The temporal bones are divided into the squamosal, mastoid, tympanic, styloid, and petrous segments. Each articulates with the zygomatic bone (zygomaticotemporal suture), sphenoid bone (sphenosquamosal suture), parietal bone (parietosquamous suture), and occipital bone (occipitomastoid suture).22-24 Understanding the anatomy of the temporal bone is critical to a number of open skull base approaches.26 A number of critical neurovascular structures, namely, the lower seven cranial nerves and the major vessels to and from the brain, traverse the temporal bone.. Externally, the squamous portion of the temporal bone is smooth and provides attachment for the temporalis fascia and muscle at the superior and inferior temporal lines, respectively.22 The zygomatic process, which has an anterior and posterior root, extends anteriorly and articulates with the zygomatic bone. Near the anterior root of the zygomatic process is the articular tubercle, just posterior to which is the glenoid fossa, where the ...
Bhatti, N., da Cruz, M., Niparko, J., Francis, H. (2016). Achieving mastery in temporal bone dissection: role of deliberate practice and formative feedback. In Howard W. Francis, John K. Niparko (Eds.), Temporal Bone Dissection Guide, (pp. 73-77). New York: Thieme Medical Publishers ...
The mastoid part of the temporal bone is its posterior component. Gross anatomy The mastoid part is normally pneumatised by the mastoid air cells and is perforated by the mastoid foramen. The roof of the mastoid antrum, which separates the mast...
7. Carotid canal of temporal bone 8. Condylar fossa and canal of occipital bone 10. Foramen magnum of occipital bone 12. Foramen spinosum of sphenoid 14.
The disc is thick all around its rim, and thin in the centre. From anterior to posterior it shows - anterior extension, thick anterior band (2.0mm thick), intermediate thin zone (1.0 mm thick), thick posterior band (3.0 mm thick) and posterior most bilaminar region (Dubrul, 1996; Williams et al, 1999). The disc is attached all around the joint capsule except the strong straps those fix the disc directly to the medial and lateral condylar poles which ensures that the disc and condyle move together in protraction and retraction (Choukas and Sicher, 1960; Williams et al, 1999). The anterior extension of the disc is attached to fibrous capsule superiorly and inferiorly and through that to temporal bone and the mandibular neck respectively. In between it gives insertion to lateral pterygoid muscle where the fibrous capsule is lacking and synovial membrane is supported only by loose areolar tissue. In the opinion of Kreutziger and Mahan (1975), this deficiency anteriorly is the weak point since there ...
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I recently saw a patient with a diagnosis of severe CS arthritis with main complaints of numbness/tingling of her UE and ringing in her ears. It appears that the intensity of the ringing in her ears is positively affected by the supine active sacro spheno flexion activity. After this technique, the ringing is less intense. She is now beginning to be able to control it with good diaphragmatic breathing in appropriate posture. Can you help me better understand the physiology/anatomy of why this may be happening? The Supine Active Sacro-Spheno Flexion technique restores OA extension on the right, repositions the sphenoid in sagittal neutrality and in general, places the sphenoid in a state of flexion. The right temporal bone is then pulled into ER (external rotation) via the right styloid muscles. So, in essence the tensor tympanics in the temporal bones and the tensor veli palatins are re-set or repositioned to allow for normal malleus and inner ear function. Thanks for the question ...
OBJECTIVE This study was conducted to discuss the etiologic factors, clinical-radiologic findings, and surgical outcomes in patients with traumatic ossicular pathology. MATERIAL AND METHODS Thirty-two patients with conductive hearing loss due to trauma were retrospectively analyzed. Their mean age was 24.56 +/- 7 years. The average delay from injury until treatment was 5.7 years. Air and bone conduction hearing thresholds were measured by pure tone audiometry on initial admission, at 1 month postoperatively and during follow-up at 6-month intervals. Mean follow-up time is 3.2 years. The hearing threshold was calculated as the mean value of the threshold for 500, 1000, 2000, and 3000 Hertz. All patients were evaluated by high-resolution computerized tomography of the temporal bone at axial and coronal sections before the surgery. RESULTS Traffic accident was the common cause of injury. Seven patients had temporal bone fracture. Six patients had facial paralysis ranging between House-Brackmann grades
Wanden van het cavum tympani Laterale wand: paries membranaceus, membrana tympani - Anteriore wand: paries caroticus, arteria carotis interna, ostium tympanicum van de tuba auditiva, Mediale wand: paries labyrinthicus, prominentie van de canalis semicircularis lateralis, de prominentie van de canalis facialis, de fenestra vestibuli (het ovale venster), het promontorium (de prominentie van de basale winding van de cochlea), de fenestra cochleae (het ronde venster), kanaal van de musculus tensor tympani, canalis facialis, tegmen tympani, antrum mastoideum, aditus ad antrum mastoideum, nervus facialis (nVII), meatus acusticus internus, nervus vestibulocochlearis (nVIII), arteria labyrinthi, paries labyrinthicus, ganglion geniculi (geniculum = knik of knie), foramen styloma - Posteriore wand: paries mastoideus, aditus ad antrum mastoideum, antrum mastoideum, cellulae mastoideae, os mastoideum, sinus sigmoideus, cerebellum - Dak: paries tegmentalis of tegmen tympani (craniale begrenzing) - Bodem: ...
Background: Eagle syndrome (ES) is a rare symptomatic condition generally caused by an elongated styloid process (SP) or calcification of the stylohyoid complex. On the diagnosis is made, its treatment remains subjective since the indications for surgical intervention are still not standardized. Although styloidectomy is the surgical treatment of choice, no consensus exists regarding the transcervical or/and transoral route. Here, we report our experience in a patient with bilateral internal carotid artery (ICA) dissection caused by ES, who underwent innovative surgical technique. Case Description: A 53-year-old man, with the right-sided middle cerebral artery acute stroke, underwent computed tomography angiography 3 days after a successful endovascular treatment. The study showed a bilateral ICA dissection with bilateral hypertrophic SPs and a close relationship of ICAs with both SPs anteriorly and C1 transverse process posteriorly. Considering the occurrence of ICA compression by a styloid/C1 ...
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Stylohyoid muscle is a slender muscle that arises from the posterior surface of the styloid process of the temporal bone, inserts into the body of the hyoid bone. It shares the muscle innervation by the facial nerve, and functions to draw the hyoid bone backwards and elevate the tongue.
Also, using the lobe of the external ear as a reference, identify the general regions of the middle ear beneath the tegmen tympani and the inner ear in the petrous portion of the temporal bone. Links and References: ...
When comparing the stylopharyngeus to the stylohyoid muscle, it is easier for the stylopharyngeus muscle to become hard. There are similarities between the two muscles as well as differences. Both the stylopharyngeus muscle and the stylohyoid muscle suspend the larynx. The stylohyoid muscle is associated with the stylohyoid ligament, but the stylopharyngeus muscle does not…
Dear Friends, The next EAONO Instructional Course will be organized in Izmir on January 18-21, 2017. As used to be the instructional courses will be the main theme and will be presented by the remarkable European Otologists as well as the invited speakers from other Continents. 180 Courses are scheduled for the coming meeting. Since Parma 2010, the consensus meeting on auditory implants have been a part of EAONO Instructional Courses. The consensus sessions will be presented in three different subtopics, as cochlear, middle ear and bone conduction implants. One representative from US and Japan/Korea will also be part of this consensus statements. Besides; three plenary sessions, nine round table discussions, three research sessions, four invited sessions, three EAONO guidelines sessions and twenty How I do it? presentations will also be part of the meeting. The Temporal Bone Dissection Courses will take part in two different formats. Advanced dissections will be performed on cadaver full heads ...
This human study involving more than 200 women and men found that AlgaeCal formulations increased bone density by more than 2% on average. To gain bone density at all is an unusual finding as humans normally lose approximately 1% of bone each year after age 40. This open label study measured bone density of participants at the beginning, then again after six months of taking AlgaeCal formulations (including strontium).. The primary outcome measure was bone mineral density and a secondary measure was safety as reported in a panel of 43 blood tests along with quality of life questionnaire. Calcium studies often report an increase in bone density, but it is never an outright increase - it is an increase compared to the placebo group which is declining - so the participants are actually losing bone. This study is a landmark result with a real increase in BMD.. ...
Effective February 7, 2011, PET/CT bone scans utilizing the radiopharmaceutical 18F- Sodium Fluoride (NaF) are covered for Medicare beneficiaries through the Coverage with Evidence Development/National Oncologic PET Registry (NOPR) program for the detection of bone metastases. 18F-Sodium Fluoride (NaF) PET/CT bone scans are an important tool for detecting and evaluating metastatic bone cancer. These bone studies are particularly useful, since some of the most prevalent cancers are commonly associated with metastatic bone disease, such as breast and prostate cancer, as well as carcinoma of the thyroid, kidney, and lung. Examples of tumor type and ICD-9-CM codes for 18F-Sodium Fluoride (NaF) PET/CT bone studies are as follows:. ...
MATERIALS AND METHODS: We retrospectively reviewed 112 consecutive patients (224 ears) with vestibulocochlear symptoms who underwent concurrent MR imaging and CT of the temporal bones between 2007 and 2009. MR imaging protocol included a FIESTA sequence covering the temporal bone (axial 0.8-mm section thickness, 0.4-mm spacing, coronal/oblique reformations; 41 patients at 1.5T, 71 patients at 3T). CT was performed on a 64-row multidetector row scanner (0.625-mm axial acquisition, with coronal/oblique reformations). Both ears of each patient were evaluated for dehiscence of the superior and posterior semicircular canals in consensual fashion by 2 neuroradiologists. Analysis of the FIESTA sequence and reformations was performed first for the MR imaging evaluation. CT evaluation was performed at least 2 weeks after the MR imaging review, resulting in a blinded comparison of CT with MR imaging. CT was used as the reference standard to evaluate the MR imaging results.. ...
Ear, Nose & Throat, Hearing Loss, Ear Infection, Vertigo/Diziness, Eustachian Tube Dysfunction, Tinnitus, Facial Nerve Palsy, Temporal Bone Trauma, Temporal Bone Tumor, CSF Otorrhea ...
East Idaho ENT uses the CS 9300 CT Scanner system designed for true panoramic imaging. Our CT Scanner comes with a low dose cone beam designed to provide fast and accurate diagnoses for sinus and temporal bone applications. Our machine is ideal for a wide range of applications including Paranasal Sinus and high resolution temporal bone exams. Our CT machine provides exceptional image quality with very low radiation.. Our CT Scanner is ideal for visualizing even the smallest middle ear structures - and all at a much lower dose than conventional CT exams, a benefit our patients are sure to appreciate.. ...
The TMJ is responsible for the hinge and sliding motion of the mouth. When our mouths open, the rounded ends (condyles) of your lower jaw will glide through the sockets of your temporal bones. The muscles are connected to the temporal bones and the jaw with a soft disc placed in between to absorb the shocks from all jaw movements.. TMJ disorders were first thought to branch from upper and lower teeth misalignment (malocclusion) or improper jaw position. This is the reason why dentists focused on replacing teeth that are missing and applying braces to correct the persons teeth alignment and change how the jaws meet.. Recent studies show that malocclusion is also part of TMJ symptoms. This means that braces or replacing teeth wont really solve the TMJ disorder, it only is a product of the disorder along with many other symptoms and factors. The American Academy of Orofacial pain said that TMJ usually involves many symptoms and rarely branches from a single cause.. There are other causes that are ...
TY - JOUR. T1 - Magnetic resonance imaging and computed tomographic characteristics of a glioma causing calvarial erosion in a dog. AU - Recio, Alfredo. AU - de la Fuente Hernandez, Cristian. AU - Pumarola Batlle, Martí. AU - Espada Gerlach, Yvonne. AU - Añor Torres, Sònia. N1 - © 2017 American College of Veterinary Radiology.. PY - 2019/1/1. Y1 - 2019/1/1. N2 - An 8-year-old female Boxer was examined for acute onset of seizures. On magnetic resonance imaging (MRI), an intra-axial mass with imaging features consistent with glioma was observed in the right cerebral hemisphere. A defect in the temporal bone adjacent to the mass was observed. Postmortem computed tomography (CT) confirmed temporal bone osteolysis and necropsy demonstrated a glioblastoma with associated calvarial erosion. Although occasionally described in human medicine, to our knowledge, this is the first description of a brain glioma causing calvarial erosion in a dog. Glioma should be included as a differential diagnosis for ...
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Electric stimulation of the auditory nerve by cochlear implants has been a successful clinical intervention to treat the sensory neural deafness. In this pathological condition of the cochlea, type-1 spiral ganglion neurons in Rosenthals canal play a vital role in the action potential initiation. Various morphological studies of the human temporal bones suggest that the spiral ganglion neurons are surrounded by heterogeneous structures formed by a variety of cells and tissues. However, the existing simulation models have not considered the tissue heterogeneity in the Rosenthals canal while studying the electric field interaction with spiral ganglion neurons ...
In cochlear implant surgery an electrode array is permanently implanted to stimulate the auditory nerve and allow deaf people to hear. Current surgical techniques require wide excavation of the mastoid region of the temporal bone and one to three hours time to avoid damage to vital structures. Recently a far less invasive approach has been proposed-percutaneous cochlear access, in which a single hole is drilled from skull surface to the cochlea. The drill path is determined by attaching a fiducial system to the patients skull and then choosing, on a pre-operative CT, an entry point and a target point. The drill is advanced to the target, the electrodes placed through the hole, and a stimulator implanted at the surface of the skull. The major challenge is the determination of a safe and effective drill path, which with high probability avoids specific vital structures-the facial nerve, the ossicles, and the external ear canal-and arrives at the basal turn of the cochlea. These four features lie ...
Anatomie en innervatie van het middenoor middenoorholte (cavum tympani), het ronde venster, buitenwand of laterale wand (paries membranaceus), v rwand of anteriore wand (paries caroticus), arteria carotis interna, ostium tympanicum van de buis van Eustachius, binnenwand of mediale wand (paries labyrinthicus), canalis semicircularis lateralis, canalis facialis, het ovale venster (fenestra vestibuli), promotorium, het ronde venster (fenestra cochleae), meatus acusticus internus, nervus vestibulocochlearis (N.VIII), arteria labyrinthi, ganglion geniculi, foramen stylomastoideum, achterwand of posteriore wand (paries mastoideus), aditus ad antrum mastoideum, antrum mastoideum, cellulae mastoideae, os mastoideum, paries tegmentalis (tegmen tympani), paries jugularis, vena jugularis interna, nervus tympanicus, tak van de nervus glossopharyngeus (N.IX ...
Antique print Het oor van den mensch II Winkler Prins Wetenschap, Geneeskunde Detailed drawings of the human ear: Perpendicular section through the cochlea; The membranous labyrinth opened; Horizontal section through the left temporal bone and the auditory organ; Section through the Trappan of the cochlea and the Serbian Corti organ
Free, official coding info for 2020 ICD-10-CM S52.513J - includes detailed rules, notes, synonyms, ICD-9-CM conversion, index and annotation crosswalks, DRG grouping and more.
In English, this muscles name is the time muscle. The word temporalis comes from the Latin word tempus meaning time. The muscle covers the temporal bone, or time bone, which received its name because the hair of the head covering this bone is often the first hair to turn gray during the aging process. Therefore, this region is the first to show the ravages of time ...
inner ear: Part of the ear that contains organs of the senses of hearing and equilibrium. The bony labyrinth, a cavity in the temporal bone, is divided into three sections: the vestibule,...
Introduction: Extracranial meningioma is a rare tumor which is located in middle ear, temporal bone, sinonasal cavity, oral cavity, parotid gland and soft tissue of head and neck. Case Report: The case of the present study was a 67-year-old male patient who referred with pain complaint during flexion of neck from ...
This is a review of Damsons British-made bone conducting headphones called Headbones. Priced at £99.99, they work using a Bluetooth connection and sit on the temporal bone, just level with and in front of your ears.
4) VII. Atrophy of the squamous layer of epidermis and of rete pegs Nazionale del cipro. 0percentto103. In a recent study of 36 cases, most of which involved the middle ear, but a few involved adjacent structures such as the external ca- nal or temporal bone, only Ciprг showed a CNS connection on radiography 116.
The jaw joint (TMJ) is surrounded by a capsule or envelope. Separating the mandible bone from the temporal bones in each joint is a disc.
Dr. John Upledger, DO, of the Upledger Institute in Florida discovered that the craniums of these children are very tight with little or no movement at the sutures. This is especially so for the temporal bone. Releasing this bone on both sides of the cranium at its sutural link to the sphenoid in front, the parietal bone above and the occiput behind, is all that it takes to set free the cranial vault in order to decrease the pressure on the internal milieu of the brain. This has such a powerful effect, that these children have even been able to integrate into normal classrooms.The method described above is known as craniosacral therapy. Along with this using techniques to teach sensory integration, more or less completes the circle of healing. There is also lymph drainage therapy that offers relief through drainage of the dura, a tissue that completely encases the brain. This helps in decongesting the brain and brings relief from decreased pressure. A synthesis of all these techniques is what ...
Paralysis of the 7th cranial nerve Many causes, the commonest: chilling of the side of the head leading to local oedema pinching the nerve where it passes through its narrow canal in the temporal bone.. ...
Left temporal bone. Outer surface. Muscles of the neck. Anterior view. The internal carotid and vertebral arteries. Right side ...
Left temporal bone. Inferior surface. The cartilages of the larynx. Posterior view. Side view of the larynx, showing muscular ... It arises from the medial side of the base of the temporal styloid process, passes downward along the side of the pharynx ... The stylopharyngeus is a muscle in the head that stretches between the temporal styloid process and the pharynx. The ...
Kamerer, Donald B.; Caparosa, Ralph J. (1982). "Temporal Bone Encephalocele ??? Diagnosis and Treatment". The Laryngoscope. 92 ... This can be done by splitting the maxilla and the frontal bone, remove a triangular shaped piece of bone from the forehead and ... All structures like bone, soft tissue, skin etc. can be affected. Facial clefts are extremely rare congenital anomalies. There ... Bone tissue reconstruction of the midface often occurs later than the soft tissue reconstruction. The most common method to ...
... flex the head and neck Occipital bone. Outer surface. Left temporal bone. Outer surface. Base of skull. Inferior surface. ... to be inserted into the inferior surface of the basilar part of the occipital bone. It is innervated by a branch of cervical ...
Left temporal bone. Inferior surface. This article incorporates text in the public domain from page 1139 of the 20th edition of ... It arises from the under surface of the apex of the petrous part of the temporal bone and from the medial lamina of the ...
Left temporal bone. Inner surface. This article incorporates text in the public domain from page 889 of the 20th edition of ...
... to collect and study the human temporal bone, and to encourage temporal bone donation. In 1992 the NIDCD National Temporal Bone ... CS1 maint: discouraged parameter (link) "What is the Registry?". National Temporal Bone Registry. Retrieved 7 January 2013. CS1 ... In 1960, DRF and the American Academy of Otolaryngology created the National Temporal Bone Banks Program, ... of the National Institutes of Health to continue and expand on the activities of the former National Temporal Bone Banks ...
Further temporal bone findings". Archives of Otolaryngology-Head & Neck Surgery. 119 (1): 106-8. doi:10.1001/archotol. ... Pedigrees, audiologic findings, and temporal bone findings in two kindreds". Archives of Otolaryngology-Head & Neck Surgery. ... in temporal bones from DFNA9 (autosomal dominant nonsyndromic sensorineural deafness 9) patients. Mutations that cause DFNA9 ...
Fossa (anatomy) Left temporal bone. Inferior surface. (Label for jugular fossa at left, sixth from bottom.) Temporal bone One ... More specifically, it is located in the temporal bone, posterior to the carotid canal and the aquæductus cochleæ. It is of ... and articulating with the jugular process of the occipital bone. ...
Zygomatic bone Temporal bone Position of zygomaticotemporal suture (red). Animation. Cross section (temporal bones removed). ... Zygomaticotemporal suture is suture between zygomatic bone, at left in white, and temporal bone, at center in pink.) Zygomatic ... is the cranial suture between the zygomatic bone and the temporal bone. Zygomaticotemporal suture (blue circle) and position of ...
Coltrera MD, Googe PB, Harrist TJ, Hyams VJ, Schiller AL, Goodman ML (1986). "Chondrosarcoma of the temporal bone. Diagnosis ... "A unique multifocal osteoblastoma-like tumor of the bones of a single lower extremity. Report of a case". The Journal of Bone ... Alan L. Schiller, M.D. is an American clinical pathologist and an expert in the effects of space and weightlessness on bone ... Mankin HJ, Connor JF, Schiller AL, Perlmutter N, Alho A, McGuire M (1985). "Grading of bone tumors by analysis of nuclear DNA ...
Coronal section of right temporal bone. The cochlea and vestibule, viewed from above. Transverse section through head of fetal ... and is placed transversely to the long axis of the petrous part of the temporal bone, on the anterior surface of which its arch ... nearly parallel to the posterior surface of the petrous bone. The vestibular aqueduct is immediately medial to it. The ...
Coronal section of right temporal bone. Prominence of the facial canal labeled at top, fourth from the left. Facial nerve ... is a Z-shaped canal running through the temporal bone from the internal acoustic meatus to the stylomastoid foramen. In humans ...
Posteriorly: apex of petrous temporal bone. The cavernous sinus receives blood from: Superior and inferior ophthalmic veins ... creating a cavity called the lateral sellar compartment bordered by the temporal bone of the skull and the sphenoid bone, ... Laterally: temporal lobe with uncus. Anteriorly: superior orbital fissure and the apex of the orbit. ... Inferiorly: Foramen lacerum and the junction of the body and greater wing of sphenoid bone. Medially: Hypophysis cerebri or ( ...
Direct AMS dating of the temporal bone (NMNH 387961) reveals that the bone is a lot younger than previously thought, giving an ... a fragment of a human right temporal bone, many bone fossils and three fragments of tin and bronze. Unearthed pottery was ... direct dating has revealed that the bone is actually from the Neolithic. Researchers now believe that the temporal bone came ... In 2017, researchers successfully extracted the DNA from both the petrous and squamous part of the Darra-e Kur temporal bone. ...
The canal starts on the inferior surface of the temporal bone at the external opening of the carotid canal (also referred to as ... The carotid canal is the passageway in the temporal bone through which the internal carotid artery enters the middle cranial ... Coronal section of right temporal bone. Carotid canal. This article incorporates text in the public domain from page 143 of the ...
A minute spicule of bone frequently connects the promontory to the pyramidal eminence. Coronal section of right temporal bone. ...
The superficial head, the larger, arises by a thick, tendinous aponeurosis from the temporal process of zygomatic bone, and ... zygomatic arch and maxillary process of zygomatic bone. Insertion. Angle and lateral surface of ramus of mandible, coronoid ...
"Facial reanimation surgery." Surgery of the ear and temporal bone. Philadelphia (PA): Lippincott Williams and Wilkins (2005): ...
Parietal bones and temporal bones are removed. External occipital protuberance This article incorporates text in the public ... Along the internal surface of the occipital bone, at the point of intersection of the four divisions of the cruciform eminence ...
Through one week surgical temporal bone courses, thousands of doctors from every continent have come to study ear surgery. In ... and the Temporal Bone Surgical Dissection Courses. Research at the House Ear Institute currently involves collaborative ...
Internal acoustic meatus Temporal bone at birth. Inner aspect. Base of the skull. Upper surface. Horizontal section through ... is a canal within the petrous part of the temporal bone of the skull between the posterior cranial fossa and the inner ear. The ... near the center of the posterior surface of the petrous part of the temporal bone. The size varies considerably. Its outer ... The fundus is subdivided by two thin crests of bone to form three separate canals, through which course the facial and ...
For temporal bone directed bullets, temporal lobe abscess, meningitis, aphasia, hemianopsia, and hemiplegia are common late ... As many as 50% of people who survive gunshot wounds directed at the temporal bone suffer facial nerve damage, usually due to a ... Backous, Douglas (5 August 1993). "Temporal Bone Gunshot Wounds: Evaluation and Management". Baylor College of Medicine. ... Nonfatal attempts may result in profound injuries, such as multiple bone fractures, amputations, concussion and severe mental ...
Left parietal bone removed. Squamosal sutures shown in red. Parietal bones (above) and temporal bones (below). Side view of the ... Close up of left temporal bone. Squamosal suture indicated by the yellow arrows. "Anatomy diagram: 34256.000-2". Roche Lexicon ... arches backward from the pterion and connects the temporal squama with the lower border of the parietal bone: this suture is ... which unites the mastoid process of the temporal with the region of the mastoid angle of the parietal bone. The term ...
Left parietal bone. Inner surface. Left temporal bone. Inner surface. Base of the skull. Upper surface. Distribution of the ... The posterior branch curves backward on the squamous part of the temporal bone, and, reaching the parietal bone some distance ... The course and connections of the facial nerve in the temporal bone. Human brain dura mater Foramen spinosum Maxillary artery ... Temporal branches pass through foramina in the great wing of the sphenoid, and anastomose in the temporal fossa with the deep ...
ISBN 978-0-7817-8867-0. Tugcu B, Gunaldi O, Gunes M, Tanriverdi O, Bilgic B (October 2008). "Osteoblastoma of the temporal bone ... of all primary bone tumors and only 14% of benign bone tumors making it a relatively rare form of bone tumor.[citation needed] ... Bone scintigraphy (bone scan) demonstrates abnormal radiotracer accumulation at the affected site, substantiating clinical ... Therefore, bone scans are useful only in conjunction with other radiologic studies and are not best used alone.[citation needed ...
Braun J, Lerner A, Gershoni-Baruch R (1991). "The temporal bone in the Johanson-Blizzard syndrome. A CT study". Pediatric ... Congenital deformations of the temporal bone and associated adverse anatomical effects on innervation and development of the ... Bamiou DE, Phelps P, Sirimanna T (March 2000). "Temporal bone computed tomography findings in bilateral sensorineural hearing ... congenital clefting of bones surrounding the optical orbit (eye socket), such as the frontal and lacrimal bone; and ...
The bony labyrinth (also osseous labyrinth or otic capsule) is the rigid, bony outer wall of the inner ear in the temporal bone ... On radiographic images, the otic capsule is the most dense portion of the temporal bone. In otospongiosis, a leading cause of ... A fracture classification system in which temporal bone fractures detected on CT are delineated based on disruption of the otic ... Brodie, H. A.; Thompson, T. C. (1997). "Management of complications from 820 temporal bone fractures". The American Journal of ...
Temporal bones and occipital bone, seen from inside. Base of skull. Inferior surface. Base of skull. Inferior surface. This ... suture or occipitotemporal suture is the cranial suture between the occipital bone and the mastoid portion of the temporal bone ...
Skull base abnormalities Hypoplasia of the petrous temporal bone. Hypoplastic and sclerotic petrous apex may mimic ...
The bone is still more malleable and can be remodelled relatively 'simply' by greenstick fractures of the bone.[42] At ... in growth at the metopic and the sagittal suture accounts for the parallel plane and will result in bulging at the temporal ... Replacement of the bones provides a possibility for the correction of the hypotelorism at the same time.[42] A bone graft is ... Most of the bones that collectively form the cranial vault - i.e. the frontal, the parietal and the occipital bones - are ...
The discovery was a handful of bones from two individuals, so its anatomy is only partly known. The bones were collected in the ... Temporal range: Middle Triassic, 243 mya. Approximation of animal based on partial skeleton shown in black (first specimen, six ...
They have a spine, rib cage, long bones such as the humerus and femur. They also have short bones such as the phalanges, ... Temporal range: late Devonian-present, fossil range 370 mya to present. Clockwise from top right: Seymouria, Mexican burrowing ... Their heads are strong and have bones that help them dig.[14]p7 Because caecilians have a lot of vertebrae, they can bend ... The bones in amphibians are hollow and do not weigh much.[18] ...
In a 2001 study conducted by Bruce Rothschild and other paleontologists, 12 hand bones and 20 foot bones referred to ... Skull shown from above, showing temporal fenestrae. Herrerasaurus was originally considered to be a genus within Carnosauria, ... The ilium, the main hip bone, is supported by only two sacrals, a basal trait.[9] However, the pubis points backwards, a ... PVSJ 407, a Herrerasaurus ischigualastensis, had a pit in a skull bone attributed by Paul Sereno and Novas to a bite. Two ...
The early fossil record is poor because the first Passeriformes were on the small side, and their delicate bones did not ... Two specimens from Queensland, Australia are fossil bone fragments clearly recognizable as passeriform. They are two species of ... Temporal range: Lower Eocene to Recent. House sparrow (Passer domesticus) Scientific classification ...
A gorge was a long, thin piece of bone or stone attached by its midpoint to a thin line. The gorge would be baited so that it ... "Temporal changes in fishing motivation among fishing club anglers in the United States - Abstract". Fisheries Management and ...
Chiropractors use x-ray radiography to examine the bone structure of a patient. ... Several case reports show temporal associations between interventions and potentially serious complications.[145] The published ... results of the Bone and Joint Decade 2000-2010 Task Force on Neck Pain and Its Associated Disorders". Spine. 33 (4 Suppl): S123 ...
the joint between the first metatarsal bone and the entocuneiform bone (the innermost of the three cuneiform bones) in the foot ... an enlarged malleolus ("little hammer") at the bottom of the tibia, the larger of the two shin bones[5] ... All extant eutherians lack epipubic bones, which are present in all other living mammals (marsupials and monotremes). This ... Reilly, Stephen M.; White, Thomas D. (2003-01-17). "Hypaxial Motor Patterns and the Function of Epipubic Bones in Primitive ...
Bones of head and neck: the facial skeleton of the skull (TA A02.1.08-15, GA 2.156-177) ... Palatine process (Incisive foramen, Incisive canals, Foramina of Scarpa, Incisive bone, Anterior nasal spine) ... Anatomy photo:34:st-0203 at the SUNY Downstate Medical Center - "Oral Cavity: Bones" ...
A bilateral temporal visual field defect (due to compression of the optic chiasm) or dilation of the pupil, and the occurrence ... The skull bone structure can also be subject to a neoplasm that by its very nature reduces the volume of the intracranial ... Temporal lobe: Tumors in this lobe may contribute to poor memory, loss of hearing,[15] difficulty in language comprehension ( ... Since the frontal, temporal, and parietal lobes[11] control inhibition, emotions, mood, judgement, reasoning, and behavior, a ...
... which comprises temporal desires and perceptions necessary for living.[46] Two of the passages in the Quran that mention the ... while the flesh and bones will disintegrate.. ... and a temporal body, which is formed by physical conception on ...
The new section will however contain cartilage rather than bone, and will never grow to the same length as the original tail. ... this group was characterized by a temporal opening in the skull behind each eye to give room for the jaw muscle to move. These ... a jaw joint formed by the quadrate and articular bones, and certain characteristics of the vertebrae.[17] The animals singled ... one that split the reptiles into four subclasses based on the number and position of temporal fenestrae, openings in the sides ...
Both sets of bones connect the shoulder girdle to the skull. With the loss of these bones, tetrapods acquired a neck, allowing ... Bones and groups of bones were also consolidated and strengthened.[71]. In Carboniferous tetrapods, the neck joint (occiput) ... A notable feature of Tiktaalik is the absence of bones covering the gills. These bones would otherwise connect the shoulder ... Finally, Tiktaalik fin bones are somewhat similar to the limb bones of tetrapods.[34][35] ...
... and is placed transversely to the long axis of the petrous part of the temporal bone, on the anterior surface of which its arch ... nearly parallel to the posterior surface of the petrous bone. The vestibular aqueduct is immediately medial to it. The ...
The thickness of the limb bones in OH 62 is more similar to chimps than H. ergaster / H. erectus and modern humans, which may ... "Spatial and temporal variation of body size among early Homo". Journal of Human Evolution. 82: 15-33. doi:10.1016/j.jhevol. ... The hand bones of OH 7 suggest precision gripping, important in dexterity, as well as adaptations for climbing. In regard to ... Domínguez-Rodrigo, M.; Cobo-Sánchez, L. (2017). "A spatial analysis of stone tools and fossil bones at FLK Zinj 22 and PTK I ( ...
This permitted good binocular vision.[7][8] The skull bones were massive. Some bones were fused, preventing movement between ... Temporal range:. Upper Cretaceous 65 mya. Skeleton at the National Museum. of Natural History, Washington, D.C.. ... Erickson, G.M. et al (1996). "Bite-force estimation for Tyrannosaurus rex from tooth-marked bones". Nature 382 (6593): 706-708 ... This may have made the bones more flexible as well as lighter. These features are part of the tyrannosaurid trend towards an ...
However, the rather nondescript bone is not unequivocally psittaciform, and it may rather belong to the ibis genus Rhynchaeites ... Temporal range: Eocene - Holocene 50-0 Ma PreЄ. Є. O. S ... differences in the skull bones, and lack the Dyck texture ... The earliest records of modern parrots date to around 23-20 mya.[15] The fossil record-mainly from Europe-consists of bones ...
... a middle layer of spongy bone, and a superficial layer of dentin), and perichondral bone.[3] ... Temporal range: Wenlock[1]-Late Devonian, 433-359 Ma PreЄ. Є ... The shield of bone covering the head formed a single piece, and ... However, the way in which the bone was laid down makes it possible to examine the imprints of nerves and other soft tissues. ...
Rheumatism or Rheumatic disorder is a general term for medical problems that can hurt the heart, bones, joints, kidney, skin ... Temporal arteritis and Polymyalgia rheumatica. *Tenosynovitis.. Treatment[change , change source]. Many traditional herbal ...
The wing bones are close to the rest of the skeleton. All the bones attributed to Rahonavis were buried in an area "smaller ... Temporal range: Upper Cretaceous, 70 million years ago. Scientific classification. Kingdom:. Animalia. ... Rahonavis has quill knobs on its ulna (forearm bone), which led at first to its inclusion among the birds. However, the rest of ... In addition, Rahonavis shoulder bones show evidence of ligament attachments allowing the independent mobility needed for ...
Temporal protein biomarkers in tracking different phases of TBIEdit. A continuum of protein biomarkers in tracking different ... "Effect of homologous bone marrow injections in x-irradiated rabbits". British Journal of Experimental Pathology. 38 (4): 401- ...
... are well known to cause bone changes, the most common type of which is hyperostotic changes (excessive bone growth), especially ... There is also a temporal relationship between development of depression and initiation of isotretinoin treatment, with most ... While excessive bone growth has been raised a possible side effect, a 2006 review found little evidence for this.[84] ... DiGiovanna JJ (November 2001). "Isotretinoin effects on bone". Journal of the American Academy of Dermatology. 45 (5): S176-82 ...
Condor bones have been found in Native American graves,[88] as have condor feather headdresses. Cave paintings of condors have ... At the time of human settlement of the Americas, the California condor was widespread across North America; condor bones from ...
Anatomical terms of bone. নিতম্বাস্থি (ইনোমিনেট অস্থি, পেলভিক অস্থি[১]) একটি বড় সমতল অস্থি,যা দেহের কেন্দ্রে থাকে এবং উপর ও ... রগাঞ্চলীয় খণ্ডক (Temporal lobe). *কক্ষ (Thalamus). *অবকক্ষ (hypothalamus). *মস্তিষ্ক-সুষম্না তরল (Cerebrospinal fluid) ... Merriam Webster, http://www.merriam-webster.com/medical/hip+bone *↑ ক খ গ Bojsen-Møller, Finn; Simonsen, Erik B.; Tranum-Jensen ...
Ankle bonesEdit. Strepsirrhines also possess distinctive features in their tarsus (ankle bones) that differentiate them from ... a protective ring of bone created by a connection between the frontal and zygomatic bones.[83] Both living and extinct ... Their eyes contain a reflective layer to improve their night vision, and their eye sockets include a ring of bone around the ... a ridge of bone on the top of the skull to which jaw muscles attach) and canine teeth.[99] Lorisoids exhibit some sexual ...
Ramanadham, S; Ali, T; Ashley, J. W; Bone, R. N; Hancock, W. D; Lei, X (2015). "Calcium-independent phospholipases A2 and their ...
After probing for foreign bodies and replacing two large detached pieces of bone, Harlow closed the wound with resin- ... estimated that although "extensive damage occurred to left frontal, left temporal polar, and insular cortex, the best fit rod ... "thirty-two pieces of bone, together with considerable sawdust"),[11] the Boston Medical& Surgical Journal (1869) pretended to ... Fiber pathway damage extended beyond the left frontal cortex to regions of the left temporal, parietal, and occipital cortices ...
In mammals, the side opening is closed by the sphenoid bone, so that the skull roof appear whole, despite the temporal opening ... the parietal bones and the bones behind them) and the snout (the frontal bone, nasal bone and the bones in front and to the ... The skull roof, or the roofing bones of the skull, are a set of bones covering the brain, eyes and nostrils in bony fishes and ... The bones are derived from dermal bone and are part of the dermatocranium. ...
... but in the absence of bone material, their relationships cannot be determined except that they are apparently avian in origin. ... Temporal range: Eocene-Recent, 45-0 Ma PreЄ. Є. O. S ... for the muscle joining the coracoid and the humerus bone ...
... and the shape of some of their bones.[22] ... Temporal range: Eocene-Recent, 55.8-0 Ma PreЄ. Є. O. S ...
... the temporal bone is derived from the fusion of many bones that are often separate in non-human mammals: *The squamosal bone, ... The temporal bones are situated at the sides and base of the skull, and lateral to the temporal lobes of the cerebral cortex. ... The petrous and mastoid parts of the temporal bone, which derive from the periotic bone, formed from the fusion of a number of ... it has an additional entotympanic bone. The auditory bulla is homologous with the tympanic part of the temporal bone.[6] ...
temporal bone (plural temporal bones) *Either of two compound bones that collectively make up the sides and base of the skull. ... Retrieved from "https://en.wiktionary.org/w/index.php?title=temporal_bone&oldid=51147169" ...
While squamous cell carcinoma is the most common tumor to affect the temporal bone, other rare tumors are recognized. These ... This chapter discusses rare tumors of the temporal bone. ... Temporal bone giant cell tumour: report of a second primary ... Gidley P.W. (2018) Unusual Tumors of the Temporal Bone. In: Gidley P., DeMonte F. (eds) Temporal Bone Cancer. Springer, Cham. * ... Giant cell tumor of bone involving the temporomandibular joint and temporal bone. J Craniofac Surg. 2014;25(4):1397-9.PubMed ...
The temporal bone is the most complex bone in the human body. It houses many vital structures, including the cochlear and ... encoded search term (Temporal Bone Fractures) and Temporal Bone Fractures What to Read Next on Medscape. Related Conditions and ... Temporal bone fracture is a frequent manifestation of head trauma. Most cases of temporal bone fracture involve severe body and ... Temporal bone fractures: longitudinal or oblique? The case for oblique temporal bone fractures. Laryngoscope. 1992 Feb. 102(2): ...
Since these lesions are surrounded by compact bones involving critical organs such as internal carotid artery and cranial ... Various lesions including benign and malignant tumors develop in the temporal bone. ... Management of Tumors in the Temporal Bone Editors. * Kenichi Nibu Series Title. Modern Otology and Neurotology. Copyright. 2019 ... The aim of this book is to provide the state of the art of comprehensive management of tumors in the temporal bone for ...
The temporal bones are not the same in all mammals. The inner ear is usually not protected in marsupials, and in other ... The temporal bones are at the sides and base of the skull. They protect the structures of the inner ear. ... The lower seven cranial nerves move along the inside of the temporal bones. The main blood vessels to and from the brain also ... Retrieved from "https://simple.wikipedia.org/w/index.php?title=Temporal_bone&oldid=6275533" ...
... massive destruction of the petrous and tympanic parts of the temporal bone is marked with arrows. (c) The most severe bone ... Figure 2: (a) CT scan of the left temporal bone-a bony sequestrum in the tympanic part is shown by the arrow. (b) An abscess in ... Clinical Challenges in the Diagnosis and Treatment of Temporal Bone Osteomyelitis. Liubov Kornilenko,1 Saulius Rocka,2 Svajunas ... A defect in the anterior wall was identified (Figure 3(b)). The tympanic part of the temporal bone was drilled out, and a large ...
Provides a step-by-step approach to learning the anatomy and principal procedures of temporal bone dissection starting with ... Home , Books , Temporal Bone Dissection Guide View PDF. Temporal Bone Dissection Guide. Publication Year: 2016. Edition: 2nd Ed ... Provides a step-by-step approach to learning the anatomy and principal procedures of temporal bone dissection starting with ... The renowned authors share their collective wisdom and pearls gleaned from years of treating patients with temporal bone ...
Neuroradiology of the temporal bone and skull base. In: Flint PW, Haughey BH, Lund V, et al, eds. Cummings Otolaryngology: Head ... Benign bony tumors of the ear canal (exostoses and osteomas) are caused by excess growth of bone. Repeated exposure to cold ...
... Acta Otolaryngol. 2007 Oct;127(10):1024-30. doi: 10.1080/ ... GAPDH mRNA was extracted from membranous labyrinths dissected from three formalin-fixed and three frozen human temporal bones, ...
... and lateral to the temporal lobes of the cerebral cortex. Click and start learning now! ... The temporal bones are facial bones which located at the sides and base of the skull, ... Introduction to temporal bone anatomy. *The temporal bone (os temporale; L., the temple) forms portions of the sides and base ... Skull Cranial Floor Bone Markings - Part 2. Temporal bone: or temporal squama (pars squamosa; squama temporalis). ...
Buy the Paperback Book Manual of Temporal Bone Exercises by Henning Hildmann at Indigo.ca, Canadas largest bookstore. + Get ... Manual of Temporal Bone Exercises. byHenning Hildmann, Holger Sudhoff, Stefan Dazert. Paperback , May 11, 2011. ... Title:Manual of Temporal Bone ExercisesFormat:PaperbackDimensions:41 pagesPublished:May 11, 2011Publisher:Springer Nature ... It contains helpful tips for temporal bone surgery and would be useful for review prior to dissections." (Inna Athar Husain, ...
The Mammalian Phenotype (MP) Ontology is a community effort to provide standard terms for annotating phenotypic data. You can use this browser to view terms, definitions, and term relationships in a hierarchical display. Links to summary annotated phenotype data at MGI are provided in Term Detail reports.
What are the symptoms of ear or temporal bone cancer? Learn the answers to this question and more at Cedars-Sinai Cancer ... Radical Temporal Bone Resection Surgery. Radical temporal bone resection includes removal of the entire temporal bone (the ... The temporal bone is an area of the skull above the ear. Approximately 200 cases of ear and temporal bone cancer are diagnosed ... Surgery on the ear canal and temporal bone is divided into three types: sleeve resection, lateral temporal bone resection and ...
... yet production of longer prostheses is wise owing to the limited number of temporal bones studied. Furthermore, the use of a ... Malleostapedotomy prosthesis size and shape: key measurements from a temporal bone study Otol Neurotol. 2012 Jun;33(4):518-22. ... Methods: Surgical dissection of 20 fresh (nonpreserved) cadaveric temporal bones was undertaken. Needlepoint calipers were used ... yet production of longer prostheses is wise owing to the limited number of temporal bones studied. Furthermore, the use of a ...
The squamous part of temporal bone, or temporal squama, forms the front and upper part of the temporal bone, and is scale-like ... Its outer surface is smooth and convex; it affords attachment to the temporal muscle, and forms part of the temporal fossa; on ... in the retiring angle between the squamous part and the petrous portion of the temporal bone. The internal surface of the ... The posterior part of the mandibular fossa, formed by the tympanic part of the bone, is non-articular, and sometimes lodges a ...
... ... This organization is tasked with maintaining a database of temporal bone donations and donors. Why the temporal bone? Whats so ... protected by the temporal bones of the skull. During life, these temporal bones and hearing mechanism are needed to hear and to ... One such organization is the National Temporal Bone, Hearing and Balance Pathology Resource Registry, or the National Temporal ...
Lo WWM, Solti-Bohman LG, Lambert PR P High-resolution CT in the evaluation of glomus tumors of the temporal bone. Radiology 150 ... Fisch IT - Infratemporal approach to tumors of the temporal bone and base of the skull. J Laryngo Otol 92:949, 1978. [ Links ] ... The authors review the clinical, radiological and pathological features of 6 cases of glomus tumors of the temporal bone. Out ... Koenig H, Lenz M, Sauter R - Temporal bone region: high resolution MR imaging using surface coils. Radiology 159:191, 1986. [ ...
temporal bone (Science: anatomy) A large irregular bone situated in the base and side of the skull, consisting of three parts, ... The bones are distinct at birth; the petrous part contains the vestibulocochlear organ; the bone articulates with the sphenoid ... Retrieved from "https://www.biology-online.org/dictionary/index.php?title=Temporal_bone&oldid=26770" ... parietal, occipital, and zygomatic bones, and by a synovial joint with the mandible. ...
The epidemiology of osteomyelitis of the temporal bone has also changed in the past 10 years. Osteomyelitis of the temporal ... uptake at the temporal bone on bone scan and gallium scan; (4) exclusion of ear tumor by histopathology if granulation tissue ... Bone scan (Tc99m) revealed increased uptake at left temporal bone area (Figure 2(c)). Gallium scans with single photon emission ... Bone scan (Tc99m) revealed increased uptake at left temporal bone area (Figure 4(c)). Gallium scans with SPECT demonstrated ...
Temporal bone of the human skull. The temporal bones are situated at the sides and base of the skull. Labels: 1, squamous ...
It is very rare in temporal bone. We report a case of ABC of the left temporal bone in an 8-year-old Asian boy who presented ... Aneurysmal bone cysts (ABC) are benign neoplasms frequently occurring in the long tubular bones. ... clinically with swelling over the left temporal region for 5 months. CT and MRI features were suggestive of ABC. Surgical ...
Fourteen temporal bones were from the right ear and 17 temporal bones were from the left ear. The age of the subjects ranged ... NF: Temporal bone processing. EP, EB, and RH: Temporal bone excision and processing. RG and AS-F: Experiment design, conception ... SH: Temporal bone scanning and data interpretation. AR: Manual segmentation of 31 temporal bones. KF and PR: Data registration ... Reorientation of the Segmented Temporal Bones. Since the segmented μCT images of the temporal bones were scanned at random ...
Autologous Bone Marrow Stem Cells Transplantation in Patients With Temporal Lobe Epilepsy. The safety and scientific validity ... Patients with refractory temporal lobe epilepsy that are transplanted with autologous bone marrow stem cells in order to ... This research investigates the use of autologous bone marrow stem cells for the treatment of medically refractory temporal lobe ... Phase 1 Study of Autologous Bone Marrow Stem Cells Transplantation in Patients With Temporal Lobe Epilepsy. ...
... general Bone cancer Care and treatment Case studies Complications and side effects Diagnosis Cancer Genetic aspects Prognosis ... Primary lymphoma of the temporal bone presenting as XIIth cranial nerve weakness.(ORIGINAL ARTICLE, Case study) by Ear, Nose ... Temporal bone lesions may be metastatic or primary. Metastatic lesions in the temporal bone typically spread from primaries in ... Computed tomography (CT) of the temporal bone demonstrated a bony lesion in the left temporal and occipital bones (figure 2). ...
It remains unknown if temporal bone features may influence the efficacy of CEST. We... ... All temporal bone CT features studied were associated with female sex. In the CEST group, temporal bone heterogeneity (p = ... Temporal bone thickness and texture are major determinants of the high rate of insonation failures of transcranial doppler in ... Sonothrombolysis Cerebral infarction Ultrasound CT scan Temporal bone Thrombolysis This is a preview of subscription content, ...
The advent of high-resolution CT scanning in the 1980s has revolutionized diagnostic imaging of the temporal bone. CT scanning ... 649 temporal bones), with temporal bone imaging revealing superior canal dehiscence in 3.3% of patients (1.7% of temporal bones ... The temporal bone houses and is surrounded by many vital structures. The temporal bone is actually composed of four bones, ... How prevalent are temporal bone variations on CT scans?. Which areas around the temporal bone have the highest prevalence of ...
"Temporal Bone" by people in this website by year, and whether "Temporal Bone" was a major or minor topic of these publications ... Aneurysmal bone cyst of the temporal bone associated with reversible hemifacial paralysis. Am J Otolaryngol. 2005 Jul-Aug; 26(4 ... "Temporal Bone" is a descriptor in the National Library of Medicines controlled vocabulary thesaurus, MeSH (Medical Subject ... Characteristics of Wax Occlusion in the Surgical Repair of Superior Canal Dehiscence in Human Temporal Bone Specimens. Otol ...
Dissected Temporal Bones. Four temporal bones were dissected from skulls of normal-hearing, elderly, male patients (average age ... Temporal Bone Imaging. In: Som PM, Curtin HD, (eds). Head and Neck Imaging, 4th ed. Mosby, St. Louis, MO.2003;1093-1108. ... In the fourth temporal bone (specimen 4), a middle-ear hearing aid was implanted by means of tympanoscopy. The hearing aid was ... MSCT scans (A and C) obtained in a patient undergoing routine temporal-bone CT are shown for the purpose of comparison with VCT ...
  • Therefore, fractures that involve the temporal bone continue along the skull base with a pattern that follows the weakest points of the anatomy. (medscape.com)
  • In the adult population, approximately 90% of temporal bone fractures are associated with concurrent intracranial injuries and 9 % with cervical spine injuries. (medscape.com)
  • This is also why a thorough understanding of the etiology, classification, complications, and treatment of temporal bone fractures is mandatory for healthcare professionals involved in the care of individuals with such injuries. (medscape.com)
  • Temporal bone injuries reportedly occur in 14-22% of all skull fractures. (medscape.com)
  • Motor vehicle accidents are the cause of 31% of temporal bone fractures. (medscape.com)
  • The pediatric population comprises 8-22% of the entire population of patients with the diagnosis of temporal bone fractures. (medscape.com)
  • Temporal bone fractures can occur after severe blunt trauma to the head and sometimes involve structures of the ear, causing hearing loss, vertigo, balance disturbance, or facial paralysis. (merckmanuals.com)
  • Temporal bone fractures have been classified by orientation with respect to the long axis of the petrous portion of the temporal bone. (merckmanuals.com)
  • Aim: To get a deeper understanding of how malleus fractures occur, how they should be treated surgically, and if the malleus shows any sign of bone healing. (diva-portal.org)
  • We then compared the bone healing of these fractures with that of the nasal bone and the mandible. (diva-portal.org)
  • The less common (20%) but more serious transverse temporal bone fractures extend at right angles to the long axis of the petrous pyramid. (hawkelibrary.com)
  • This will diagnose temporal bone fractures and associated intracranial pathology. (entsho.com)
  • 10% of temporal bone fractures) unless there has been a penetrating injury, in which case the frequency rises. (entsho.com)
  • Complete surgical excision is treatment of choice but is often difficult to achieve given the anatomy of the temporal bone. (springer.com)
  • There are some that would say that the old fashioned apprenticeship is the gold standard in surgery but this CD-ROM by Blevins, Jackler, and Gralapp is an attempt to use computer technology to teach young surgeons the anatomy of the temporal bone and temporal bone dissection techniques. (bmj.com)
  • The anatomy of the temporal bone is one of the most complicated areas in the human body. (granice.pl)
  • [ 1 , 2 ] The purpose of this article is to familiarize the reader with the normal anatomy of the temporal bone depicted by CT scanning. (medscape.com)
  • Excerpt from Guide to and Catalogue of Specimens Illustrating the Surgical Anatomy of the Temporal Bone, in the Museum of the Royal College of Surgeons of England TI - IR specimens are shown in the Upper Gallery of Room II. (alibris.com)
  • Understanding Radiological anatomy of the Temporal Bone Made Easy! (orlvarsity.com)
  • A temporal bone fracture can involve none or all of these structures. (medscape.com)
  • Temporal bone fracture is a frequent manifestation of head trauma. (medscape.com)
  • Most cases of temporal bone fracture involve severe body and/or head trauma. (medscape.com)
  • Rarely, fluctuating sensorineural hearing loss and vestibular dysfunction occur with temporal bone fracture and may be due to a perilymph fistula. (merckmanuals.com)
  • If a temporal bone fracture is suspected, immediate CT of the head with special attention to the temporal bone is recommended. (merckmanuals.com)
  • Ossiculoplasty on human temporal bones was performed in the presence of a malleus fracture. (diva-portal.org)
  • Osteoporosis results in severe bone loss, reduced bone strength and an increased risk of fracture. (nc3rs.org.uk)
  • The model will account for bone geometry, density distribution and microarchitecture and be used under different loading scenarios to predict bone strength and fracture risk. (nc3rs.org.uk)
  • We will develop and validate in vivo microCT based computational models for prediction of the mouse tibia strength, which is more related to risk of fracture than standard bone density measurements. (nc3rs.org.uk)
  • Sensorineural hearing loss +/- vertigo after a temporal bone fracture implies traumatic audio/vestibular failure. (entsho.com)
  • Duderstadt M, Forster C, Welkoborsky HJ, Ostertag H. Adenomatous tumors of the middle ear and temporal bone: clinical, morphological and tumor biological characteristics of challenging neoplastic lesions. (springer.com)
  • Aggressive papillary tumor of middle ear/temporal bone and adnexal papillary cystadenoma. (springer.com)
  • The disorder might be related to the initial inflammatory process in the middle ear with further direct spreading of infection through defects in the bony walls to deep temporal bone structures. (hindawi.com)
  • It contains the external auditory meatus, a canal that leads to the tympanic membrane ( eardrum ) and bones of the middle ear. (getbodysmart.com)
  • Whilst the systematic training includes use of the microscope and surgical instruments, heavy emphasis is also placed on knowledge of the surgical anatomy of the middle ear and the temporal bone. (indigo.ca)
  • Radical temporal bone resection includes removal of the entire temporal bone (the sleeve, middle ear and inner ear) plus exposure of the brain. (cedars-sinai.edu)
  • The article reviews the anatomy of the middle ear space and surrounding bone and presents radiographic imaging in both axial and coronal views, with labeled salient features and relevant text. (medscape.com)
  • The floor of the middle ear is primarily composed of the bone covering the jugular bulb. (medscape.com)
  • This review illustrates key imaging findings after surgery for Ménière disease, superior semicircular canal dehiscence, temporal encephalocele repairs, internal auditory canal decompression, active middle ear implants, jugular bulb and sigmoid sinus dehiscence repair, and petrous apicectomy. (ajnr.org)
  • Computed tomographic (CT) images showed ossicular chain changes and thickening of the skull and petrous bones, with appositional bone growth, causing a narrowing of the middle ear cavity and oval and round window niches. (deepdyve.com)
  • Abstract - A life-size mechanical middle ear model and human temporal bones were used to evaluate three different middle ear transducers for implantable hearing aids: the driving rod transducer (DRT), the floating mass transducer (FMT) or vibrant sound bridge, and the contactless transducer (CLT). (va.gov)
  • In this study, a life-size mechanical middle ear model [19] was validated by comparative measurements in real human temporal bones. (va.gov)
  • HRCT temporal bone axial scan is a high resolution computed tomography (HRCT) imaging test which helps to visualise specially the soft tissues and bones of the temporal region of the brain (middle ear). (1mg.com)
  • CT is the imaging modality of choice for most of the pathologic conditions of the temporal bone, especially for those of the middle ear. (desk.nl)
  • In all temporal bones examined, we found extensive congestion petechiae and haemorrhage in the vessels in the mucosal layers of the middle ear and mastoid air cells, as well as in the vessels around the facial nerve and carotid canal. (ent-review.com)
  • BCCs and SCCs arising in the temporal bone (ear canal) occur spontaneously and can spread quickly to adjacent areas like the parotid gland (salivary gland anterior to the ear canal), the neck (inferior to the ear canal), the middle ear (deep/medial to the ear canal) or the mastoid (posterior to the ear canal). (neurotucson.com)
  • Methods: From the human temporal bone (HTB) collection at the University of Minnesota we selected human temporal bones with COM, defined as the presence of clinically intractable tissue abnormalities in the middle ear (cholesteatoma, perforation of the eardrum, granulation tissue, fibrosis, tympanosclerosis, and cholesterol granuloma). (umn.edu)
  • Petrous part ( pars petrosa temporalis ) is a pyramid-shaped portion of the temporal bone that projects medially and anteriorly from the squamous part. (getbodysmart.com)
  • Mastoid part ( pars mastoidea temporalis ) is the thick, roughened, posterior portion of the temporal bone that is located behind the ear. (getbodysmart.com)
  • Only a small portion of the temporal bone, along with the hearing mechanism are removed at death. (healthyhearing.com)
  • The chorda tympani nerve passes through a canal (canal of Huguier), separated from the anterior edge of the petrotympanic fissure by a thin scale of bone and situated on the lateral side of the auditory tube, in the retiring angle between the squamous part and the petrous portion of the temporal bone. (wikipedia.org)
  • An axial view through the superior portion of the temporal bone can be seen below. (medscape.com)
  • An axial view through the superior portion of the temporal bone, which demonstrates the anterior (a) and posterior (b) crura of the superior semicircular canal. (medscape.com)
  • The flattened, upper portion is the squamous portion of the temporal bone. (chromoscience.com)
  • Posteriorly is the mastoid portion of the temporal bone. (chromoscience.com)
  • The petrous portion of the temporal bone forms a rare location for this tumor. (biomedcentral.com)
  • Fused with the squamous and mastoid parts and between the sphenoid and occipital bones lies the petrous part , which is shaped like a pyramid. (wikipedia.org)
  • The petrous part is a medial extension that forms the base of the skull between the sphenoid and occipital bones. (getbodysmart.com)
  • It forms a narrow mass between the sphenoid bone (anterior) and the occipital bone (posterior). (getbodysmart.com)
  • the bone articulates with the sphenoid , parietal , occipital , and zygomatic bones , and by a synovial joint with the mandible . (biology-online.org)
  • It is present at the base of skull and is located between sphenoid and occipital bones. (anatomic.us)
  • The foramen lacerum is also an opening which is present at the junction of three bones i.e. sphenoid, occipital and petrous part of temporal bone. (anatomic.us)
  • Pterion is a point where temporal, frontal, parietal and sphenoid bones meet. (anatomic.us)
  • This growth of the skull base, responsible for much of the cranial lengthening, is dependent on the most important basicranium synchondroses along with the occiput, sphenoid and temporal bones in between. (biomedcentral.com)
  • The bone articulates with the sphenoid bone anteriorly, and parietal bone laterally. (teachmeanatomy.info)
  • It is rarely encountered in the skull where it is preferentially seen to involve the sphenoid and the temporal bones. (biomedcentral.com)
  • Neuroradiology of the temporal bone and skull base. (pennmedicine.org)
  • MRI and CT are complementary in the skull base and the authors have utilised the computer technology wonderfully in this sphere in order to meet the challenge of identifying the anatomical structures of the temporal bone in the axial, coronal and sagittal planes. (bmj.com)
  • Four temporal bones were dissected from skulls of normal-hearing, elderly, male patients (average age, 64 years) who died from causes unrelated to ear or skull-base disease. (ajnr.org)
  • The report of a diabetic patient with pseudomonal osteomyelitis of the temporal bone and skull base not associated with an external otitis is presented. (pubmedcentralcanada.ca)
  • Neoplasms located in the parotid region, temporal bone, infratemporal fossa, and lateral skull base represent a challenge due to their difficult anatomic location and surrounding neurovascular structures. (entjournal.com)
  • Nager, George T. / Fibrous dysplasia involving the skull base and temporal bone . (elsevier.com)
  • Among these bones, the bone that is present on the base of the skull (base is also made by some other bones) and on sides of the skull is called the temporal bone . (anatomic.us)
  • The text will review important medical issues as they specifically relate to temporal bone cancer such as advanced imaging, pathologic classification, skull base surgery, plastic reconstructive surgery, and advances in osseointegrated implants for hearing restoration. (icebe.es)
  • The temporal bones are overlaid by the sides of the head known as the temples , and house the structures of the ears . (wikipedia.org)
  • The National Temporal Bone, Hearing, and Balance Pathology Resource Registry, which is sponsored by the National Institute on Deafness and Other Communication Disorders, promotes research into hearing and balance disorders through the study of the temporal bone and related brain structures. (nih.gov)
  • The temporal bone houses and is surrounded by many vital structures. (medscape.com)
  • Our purpose was to determine how well a prototypical volume CT (VCT) scanner with a flat-panel detector system defines fine structures in temporal bone. (ajnr.org)
  • The flat-panel prototype provides better definition of fine osseous structures of temporal bone than that of currently available MSCT scanners. (ajnr.org)
  • Because temporal-bone imaging is often critically dependent on spatial resolution ( 1 ) rather than soft-tissue contrast, we hypothesized that such a scanner design could produce images of these structures superior to those rendered by the current state-of-the-art technique. (ajnr.org)
  • Point doses were measured for 18 healthy temporal bone structures in each patient, with the anatomical position of each sampling point confirmed by a fellowship-trained neurootologist. (thejns.org)
  • Different structures were best seen on different axial levels within the temporal bone. (thejns.org)
  • Digital screen image captured from Gamma Plan version 4.0 demonstrating the cursor position for the sampling point dose on an MR treatment planning image for the external auditory canal bone/cartilage junction, and two of the eight inner ear structures measured ( Table 2 ). (thejns.org)
  • A Head, Brain and Temporal Bones CT scan utilizes IV contrast to illuminate internal structures found inside your head. (umms.org)
  • Recent advances in magnetic resonance imaging (MRI) technology has allowed the development of imaging sequences tailored to the assessment of exquisite anatomic detail of the temporal bone structures. (elsevier.com)
  • This article describes MRI of the normal temporal bone anatomy, with emphasis on common anatomic variants and clinically relevant structures. (elsevier.com)
  • Another aspect to note is the availability of at least three temporal bones fresh (not frozen and preserved in formaldehyde), which highly values the anatomical exhibition and conservation of structures that will expose and dissect. (unl.pt)
  • Computed tomography (CT) of the temporal bone demonstrated a bony lesion in the left temporal and occipital bones (figure 2). (thefreelibrary.com)
  • The advent of high-resolution computed tomography (CT) scanning in the 1980s revolutionized diagnostic imaging of the temporal bone. (medscape.com)
  • Classification and volumetric analysis of temporal bone pneumatization using cone beam computed tomography. (umassmed.edu)
  • Operative findings of conductive hearing loss with intact tympanic membrane and normal temporal bone computed tomography. (nih.gov)
  • Especially, in patients with a normal temporal bone computed tomography (TBCT), preoperative diagnosis is more difficult. (nih.gov)
  • Preoperative computed tomography demonstrated an unusually distended bony canal that passed through the superolateral portion of the right petrous bone. (entjournal.com)
  • Computed tomography of the temporal bone in hemifacial microsomia. (radiologycases.com)
  • We report a case of a 5-years old girl with left post auricular swelling, otalagia and otorrhea of 2 month duration, High resolution computed tomography of temporal bone show destructive expanding tissue density mass. (scitechnol.com)
  • Computed tomography (CT) scans of the temporal bones use x-ray technology and advanced computer analysis to create detailed images that allow your doctor to evaluate the area for abnormalities. (sfenta.org)
  • This chapter discusses rare tumors of the temporal bone. (springer.com)
  • While squamous cell carcinoma is the most common tumor to affect the temporal bone, other rare tumors are recognized. (springer.com)
  • Various lesions including benign and malignant tumors develop in the temporal bone. (springer.com)
  • While several books related to the tumors of temporal bone have been published, these books only refer to the anatomy and/or surgical techniques but not to the other treatment options such as radiotherapy or chemotherapy. (springer.com)
  • The aim of this book is to provide the state of the art of comprehensive management of tumors in the temporal bone for professional otologists, head and neck surgeons, and neurosurgeons. (springer.com)
  • Benign bony tumors of the ear canal (exostoses and osteomas) are caused by excess growth of bone. (pennmedicine.org)
  • Temporal bone tumors are usually caused by a tumor that begins on the skin near the ear and later spreads to the bone. (cedars-sinai.edu)
  • These tumors can also be caused when cancer spreads from another part of the body to the temporal bone (metastasis). (cedars-sinai.edu)
  • The authors review the clinical, radiological and pathological features of 6 cases of glomus tumors of the temporal bone. (scielo.br)
  • 12. Fisch IT - Infratemporal approach to tumors of the temporal bone and base of the skull. (scielo.br)
  • This volume comprehensively reviews the current literature on temporal bone cancer and the multidisciplinary approaches used to managing these rare tumors. (icebe.es)
  • Written by leaders in the field, Temporal Bone Cancer will be an invaluable resource for residents and fellows in Otolaryngology, Neurosurgery and Neurotology, and clinicians with interest in the primary tumors of the temporal bone. (icebe.es)
  • It is an attachment point for the digastric muscle that moves the hyoid bone and opens the mouth (or depresses the mandible). (getbodysmart.com)
  • At the inferior side, the temporal bone forms joint with the mandible bone and this joint is called temporomandibular joint . (anatomic.us)
  • Both the articular tubercle and mandibular fossa contribute to the temporomandibular joint, the joint that provides for movements between the temporal bone of the skull and the mandible. (chromoscience.com)
  • The lower portion of the bone articulates with the mandible , forming the temporomandibular joint of the jaw. (teachmeanatomy.info)
  • A major articulation of the temporal bone is with the mandible (i.e. jaw bone) to form the temporomandibular joint which is covered in detail here . (teachmeanatomy.info)
  • The clinical presentations specifically related to temporal bone trauma include facial nerve paralysis (partial or complete), hearing loss (conductive, sensorineural, or mixed), vertigo , dizziness , otorrhagia, cerebrospinal fluid (CSF) otorrhea , tympanic membrane perforation , and hemotympanum and canal laceration. (medscape.com)
  • The temporal bone is ossified from eight centers, exclusive of those for the internal ear and the tympanic ossicles: one for the squama including the zygomatic process, one for the tympanic part, four for the petrous and mastoid parts, and two for the styloid process. (wikipedia.org)
  • Styloid Process ( processus styloideus temporalis ) is a narrow inferior extension from the bottom surface of the tympanic part of the temporal bone. (getbodysmart.com)
  • Stylomastoid foramen ( foramen stylo-mastoideum temporalis ) is a small hole on the inferior surface of the petrous part of the temporal bone, in the region between styloid and mastoid processes. (getbodysmart.com)
  • The styloid process of temporal bone is a pointed, narrow projection that is formed from the point (behind external ear), which is junction of tympanic and petrous parts of the temporal bone. (anatomic.us)
  • The squamous, tympanic and petromastoid parts make up the majority of the bone, with the zygomatic and styloid processes projecting outwards. (teachmeanatomy.info)
  • Osteomyelitis of the temporal bone is a rare but life-threatening complication that is mostly secondary to malignant otitis externa (MOE) and was first recognized as a distinct clinical entity by Meltzer and Kelemen in 1959 [ 1 ]. (hindawi.com)
  • Jr Histopathology of Pseudomonas osteomyelitis of the temporal bone starting as malignant external otitis. (pubmedcentralcanada.ca)
  • Temporal bone histopathology of necrotizing external otitis. (pubmedcentralcanada.ca)
  • Temporal bone osteomyelitis and temporoparietal abscess secondary to malignant otitis externa. (semanticscholar.org)
  • OBJECTIVE We report an advanced presentation of osteomyelitis of the temporal bone secondary to malignant otitis externa. (semanticscholar.org)
  • METHOD We present a case report and a review of the world literature concerning osteomyelitis of the temporal bone secondary to malignant otitis externa. (semanticscholar.org)
  • In otolaryngologic practice temporal bone presentation is clinically similar to otitis externa, otitis media , acute mastoiditis, chronic mastoiditis . (scitechnol.com)
  • Encephaloceles of the temporal bone are typically acquired rather than congenital and caused by head trauma, erosion of temporal bone by chronic suppurative otitis media / cholesteatoma , iatrogenic due to mastoid surgery or sometimes are idiopathic (form spontaneously). (neurotucson.com)
  • Temporal bone osteomyelitis is a serious life-threatening condition-a quick and proper diagnosis is needed to start treatment and reduce morbidity and mortality. (hindawi.com)
  • Temporal bone osteomyelitis (TBO) is a dangerous condition, and the proper treatment at the appropriate time is extremely important. (hindawi.com)
  • Fatal cases of temporal bone osteomyelitis have been described previously. (hindawi.com)
  • Fifty-five patients hospitalized for osteomyelitis of the temporal bone between 1990 and 2011 were divided into two study groups: group 1 was patients collected from 1990 to 2001 and group 2 was composed of patients between 2002 and 2011. (hindawi.com)
  • Clinical diagnostic criteria and epidemiologic data were analyzed to illustrate the altering features of osteomyelitis of the temporal bone. (hindawi.com)
  • We should highlight the index of clinical suspicion for osteomyelitis of the temporal bone, even in nondiabetic or immunocompetent patients. (hindawi.com)
  • Painless otorrhea patients were also at risk of osteomyelitis of the temporal bone, especially patients with previous otologic operation. (hindawi.com)
  • Increased multiplicity of pathogens amplified the difficulty of diagnosis for osteomyelitis of the temporal bone. (hindawi.com)
  • The diagnosis of osteomyelitis of the temporal bone is based on a combination of clinical findings, a laboratory test, radiographic examination, and nuclear imaging. (hindawi.com)
  • However, the authors experienced that the varying clinical features and bacteriology had been produced to increase difficulty in diagnosis and treatment for osteomyelitis of the temporal bone in recent years. (hindawi.com)
  • The posterior part of the mandibular fossa, formed by the tympanic part of the bone, is non-articular, and sometimes lodges a portion of the parotid gland. (wikipedia.org)
  • A study by Shamshad et al using high-resolution CT scanning found pneumatization of the temporal bone to be more prevalent around the temporal mandibular joint (TMJ). (medscape.com)
  • The anterior extension of the disc is attached to fibrous capsule superiorly and inferiorly and through that to temporal bone and the mandibular neck respectively. (intelligentdental.com)
  • Provides a step-by-step approach to learning the anatomy and principal procedures of temporal bone dissection starting with mastoidectomy and including approaches to the internal auditory canal and jugular foramen. (ovid.com)
  • Carotid canal ( canalis caroticus tem-poralis ) is a prominent hole on the inferior surface of petrous part of the temporal bone, just anterior to jugular foramen. (getbodysmart.com)
  • Then, spread of infection into the temporal bone occurs through the fissures of Santorini and the tympanomastoid suture, leading to involvement of the stylomastoid and jugular foramina and eventually affecting cranial nerve function. (hindawi.com)
  • The jugular foramen is a small opening that is present between the occipital bone and the petrous part of temporal bone. (anatomic.us)
  • Characteristics of Wax Occlusion in the Surgical Repair of Superior Canal Dehiscence in Human Temporal Bone Specimens. (umassmed.edu)
  • There are many other conditions for which there are no or few human temporal bone specimens. (tbregistry.org)
  • This is a structured competence-based surgical dissection course utilising separate programmes for three temporal bones on embalmed specimens. (jlo.co.uk)
  • Bullough's bump: Unusual protuberant fibro-osseous tumor of the temporal bone. (elsevier.com)
  • A brief summary of the regional anatomy, etiology and epidemiology, presentation and diagnosis, radiologic assessment and treatment follows with a review of the pathologic assessment of the different types of specimens generated and an update on staging for SCC of the temporal bone. (springer.com)
  • Diagnosis of a temporal bone encephalocele is made after obtaining a thorough medical history, performing a microscope exam of the ears and evaluating temporal bone imaging (CT scans of the temporal bones or MRI scans with internal auditory canal protocol). (neurotucson.com)
  • The zygomatic process is a long, arched process projecting from the lower region of the squamous part and it articulates with the zygomatic bone . (wikipedia.org)
  • The anterior end is deeply serrated and articulates with the zygomatic bone. (wikipedia.org)
  • Criteria proposed by Coley et al include (1) a primary focus in a single bone on admission, (2) unequivocal histologic proof from a bone lesion (not from a metastasis), and (3) metastasis present on admission only if regional or if the onset of the primary tumor preceded the appearance of the metastasis by at least 6 months. (thefreelibrary.com)
  • Distant metastasis usually occurs to lung and bones. (banglajol.info)
  • In the skull, metastasis usually occurs in occipital bone. (banglajol.info)
  • Metastasis to temporal bone is a rare event. (banglajol.info)
  • Squamous part or squama ( pars squa-mosa: squama temporalis ) is the smooth, thin, superior portion of the bone that forms the lower lateral cranial wall. (getbodysmart.com)
  • Zygomatic process ( processus zygo-maticus temporalis ) is a narrow, anterior extension from the inferior portion of the temporal squama. (getbodysmart.com)
  • External acoustic (auditory) meatus ( meatus acusticus externus temporalis ) is a prominent canal (the ear canal) in the tympanic part of the temporal bone. (getbodysmart.com)
  • Mastoid process ( processus mastoideus temporalis ) is a pyramidal or conically shaped protrusion from the inferior surface of mastoid part of the temporal bone, just posterior to external auditory meatus. (getbodysmart.com)
  • it serves for the attachment of the temporal fascia, and limits the origin of the temporalis muscle. (wikipedia.org)
  • 3. I do not want to remove the temporalis muscles considering my head is widest at the top bony area and removing muscle beneath is will only make it appear even wider-especially considering muscle removal has a far more dramatic effect than bone burring, so even if both were done I imagine I would still get that effect. (eppleyplasticsurgery.com)
  • It forms the part of temporal fossa (depression) and it also gives surface for the attachment of the temporalis muscle . (anatomic.us)
  • Normally the temporal bone is not fractured as it is very strong bone (the only thin squamous part of bone is covered by temporalis muscle thus making it also thick). (anatomic.us)
  • Also known as the squama temporalis, this is the largest part of the temporal bone. (teachmeanatomy.info)
  • Due to the involvement of the temporal bone in forming the temporomandibular joint (i.e. joint of the jaw) some fibres from muscles of mastication such as the temporalis and masseter muscles attach to the temporal bone. (teachmeanatomy.info)
  • The spectrum of temporal bone trauma is extremely varied, ranging from minor concussion without functional deficits to severe blunt or penetrating trauma with multifunctional deficits that involve the auditory and vestibular nerves, the facial nerve, and the intracranial contents. (medscape.com)
  • Balance and orientation in humans are largely dependent on the vestibular system which is housed in the temporal bone. (frontiersin.org)
  • Postoperative temporal bone imaging after surgical procedures such as ossiculoplasty, tympanomastoidectomy, cochlear implantation, and vestibular schwannoma resection is often encountered in clinical neuroradiology practice. (ajnr.org)
  • Four partially manipulated temporal-bone specimens were imaged by use of a prototypical cone-beam VCT scanner with a flat-panel detector system at an isometric resolution of 150 μm at the isocenter. (ajnr.org)
  • To test our hypothesis, we scanned four temporal-bone specimens by using a modern MSCT scanner, the reference standard, and a prototypical VCT scanner that employs a flat-panel detector. (ajnr.org)
  • Further investigation of this region, aided by the use of cadaveric specimens, led to the identification of normal anatomic variability in the amount of fat in the substantia spongiosa of the petrous temporal bone. (avmi.net)
  • In addition to traditional light and electron microscopy, techniques such as polymerase chain reaction (PCR) amplification of DNA and mRNA, in-situ hybridization, immunostaining, and emerging technologies for proteomics research can now be applied to temporal bone and brain specimens which holds great promise in improving knowledge of the molecular pathology of hearing and balance disorders. (tbregistry.org)
  • There are very few temporal bone specimens that have been procured from normal individuals with well-documented normal levels of hearing and balance function. (tbregistry.org)
  • It is anatomically divided into four regions called the squamous, mastoid, temporal, and petrous parts. (getbodysmart.com)
  • The Outcome of radical surgery and postoperative radiotherapy for squamous carcinoma of the temporal bone. (springer.com)
  • These postoperative temporal bone findings can have unique imaging features based on the type of surgical procedure and indication. (ajnr.org)
  • The purpose of this image-rich review is to illustrate less common postoperative temporal bone CT findings that neuroradiologists may encounter and would ideally be able to recognize and to differentiate from disease mimics. (ajnr.org)
  • The postoperative swelling would be less than with temporal muscle removal. (eppleyplasticsurgery.com)
  • The Result associated with sweeping surgical treatment as well as postoperative radiotherapy regarding squamous carcinoma associated with the temporal navicular bone. (shedubeard.com)
  • It separates parietal bone and squama portion of temporal bone. (wikipedia.org)
  • The superior border is thin, and bevelled at the expense of the internal table, so as to overlap the squamous border of the parietal bone, forming with it the squamosal suture. (wikipedia.org)
  • The zygomatic process is an extension of the squamous part of temporal bone anteriorly. (anatomic.us)
  • Below this area and projecting anteriorly is the zygomatic process of the temporal bone, which forms the posterior portion of the zygomatic arch. (chromoscience.com)
  • It projects anteriorly, articulating with the temporal process of the zygomatic bone. (teachmeanatomy.info)
  • The tympanic part of the temporal bone lies inferiorly to the squamous, and anteriorly to the petromastoid part. (teachmeanatomy.info)
  • Since these lesions are surrounded by compact bones involving critical organs such as internal carotid artery and cranial nerves, considerable experience and techniques are required in surgical treatment and surgical treatments often accompanied by severe sequelae. (springer.com)
  • From the reviews:"This manual for performing various temporal bone dissections is divided into exercises in order of complexity, with figures highlighting key steps of each surgical activity. (indigo.ca)
  • Surgical dissection of 20 fresh (nonpreserved) cadaveric temporal bones was undertaken. (nih.gov)
  • It provides comprehensive, high-quality, full-color pictures of the detailed steps of all the major surgical approaches that can be performed in the temporal bone, supplemented by images of cadaveric dissections as an aid to understanding the intracranial anatomy when indicated by the approach. (granice.pl)
  • We developed a surgical model from freshly frozen human temporal bones, and we performed Laser Doppler vibrometry (LDV) measurements on this model both before and after ossiculoplasty.Paper III. (diva-portal.org)
  • Surgical management of osteoradionecrosis of the temporal bone. (semanticscholar.org)
  • article{Kveton1988SurgicalMO, title={Surgical management of osteoradionecrosis of the temporal bone. (semanticscholar.org)
  • The surgical management of osteoradionecrosis of the temporal bone has met with limited success because of the difficulty in accurate assessment of the viability of nonnecrotic bone intraoperatively. (semanticscholar.org)
  • A patient with temporal bone osteochondroma and its surgical treatment are here described. (istanbulc.edu.tr)
  • Ensure that otolaryngologists, and in particular residents, can get familiar with anatomy and learn basic surgical techniques and some more advanced surgical techniques that take place in the temporal bone. (unl.pt)
  • The bony framework of the temporal bone contains multiple air spaces. (medscape.com)
  • Human head contains a single large bony structure called the skull , which is further made up of a large number of small bones. (anatomic.us)
  • Unfortunately, there is a lack of knowledge about the exact role of the ET's bony support, the temporal bone, on occurrence of AOM. (biomedcentral.com)
  • This book will be a valuable resource for general radiologists, radiology residents, ENT residents, otology surgeons and anyone involved in the occasional temporal bone study. (springer.com)
  • The thick, mastoid part forms the lower, posterior portion of the bone. (getbodysmart.com)
  • The posterior margin of the temporal bone, or cerebellar plate, (e) forms the anterior margin of the posterior cranial fossa. (medscape.com)
  • A CT-scan study by Takahashi et al found that different regions of the temporal bone mature at different ages, determining that the otic capsule demonstrates mature bone at birth, while the ages of maturation for the lateral surface of the mastoid cavity, the posterior cranial fossa, and the middle cranial fossa are 1.7, 3.9, and 10.8 years, respectively. (medscape.com)
  • It is a large bone formed by the fusion of parts: the squamous (the flattened anterior-superior part), the tympanic (the curved anterior-inferior part), the mastoid (the irregular posterior portion), and the petrous (the part at the base of the skull). (umassmed.edu)
  • The mastoid part of the temporal bone is its posterior component. (radiopaedia.org)
  • PURPOSE: In otorhinolaryngology training, introduction to temporal bone surgery through hands-on practice on cadaveric human temporal bones is the gold-standard training method before commencing supervised surgery. (regionh.dk)
  • It joins with the temporal process of the zygomatic bone to form the zygomatic arch (or check bone). (getbodysmart.com)
  • It had destroyed the squamous temporal bone, lateral petrous portion, zygomatic arch and was seen invading the cranium pushing the temporal bone superiorly and medially along with the dura [Fig. 3 ]. (biomedcentral.com)
  • This book presents standard imaging techniques, basic anatomy and an approach to common pathology encountered in temporal bone imaging. (springer.com)
  • One such organization is the National Temporal Bone, Hearing and Balance Pathology Resource Registry , or the National Temporal Bone Registry for short. (healthyhearing.com)
  • However, studies of temporal bone pathology resulting from sudden death due to drowning are few. (ent-review.com)
  • We studied temporal bone pathology in six cases of individuals who died of accidents due to drowning. (ent-review.com)
  • Human temporal bones provide an invaluable resource for the study of the pathology and pathophysiology of disorders of hearing, balance, and facial nerve function. (tbregistry.org)
  • HRCT Temporal bone - Axial views. (orlvarsity.com)
  • They usually seen in the axial skeleton, especially around the metaphysis of long bone but seldom in the head and neck region. (istanbulc.edu.tr)
  • Preoperative axial CT scan which shows a large hyperdense tumor arising from the petrous portion of the right temporal bone with intracranial extension and impending uncal herniation. (biomedcentral.com)
  • COCH mRNA as well as GAPDH mRNA was extracted from membranous labyrinths dissected from three formalin-fixed and three frozen human temporal bones, removed at autopsy. (nih.gov)
  • Methods: Stapedial vibrations were measured on fresh frozen human temporal bones with laser Doppler vibrometry. (diva-portal.org)
  • In this article, we shall look at the different parts of the temporal bone, their articulations, and any clinical correlations. (teachmeanatomy.info)
  • Fig 1.1 - The constituent parts of the temporal bone. (teachmeanatomy.info)
  • We shall now examine the constituent parts of the temporal bone in more detail. (teachmeanatomy.info)
  • We report a case of ABC of the left temporal bone in an 8-year-old Asian boy who presented clinically with swelling over the left temporal region for 5 months. (ovid.com)
  • abstract = "HYPOTHESIS: Endolymphatic hydrops in temporal bones with otologic syphilis directly relates to osteitis, new bone formation, and/or resorption along the course of the endolymphatic system. (elsevier.com)
  • it runs backward above the external auditory meatus, and is continuous with the temporal line. (wikipedia.org)
  • The external auditory meatus is surrounded by the tympanic part of temporal bone. (anatomic.us)
  • The outer facing surface of the squamous bone is convex in shape, forming part of the temporal fossa . (teachmeanatomy.info)
  • If you need a CT scan of the temporal bones, there is no better destination than SFENTA. (sfenta.org)
  • CT scan of the brain showed a large well defined hyperdense contrast enhancing lesion originating from the right temporal bone - squamous and petrous portions with a large intracranial extension causing uncal herniation [Fig. 1 & 2 ]. (biomedcentral.com)
  • Abdelziz AA, Osman NMM, Gayyed MF (2018) Langerhans Cell Histiocytosis in Temporal Bone: Case Report. (scitechnol.com)
  • A 10-year-old girl presented with a firm, slowly enlarging protuberant mass arising from the squamous suture of the temporal bone without intracranial extension. (elsevier.com)
  • Squamous cell carcinoma (SCC) is the most common primary malignancy to affect the temporal bone, including primary cutaneous SCC of the pinna, external auditory canal, middle and inner ear. (springer.com)
  • It succeeds in targeting its intended audience of otolaryngology residents and others looking for an introduction to temporal bone dissection. (indigo.ca)
  • Incidental internal carotid artery (ICA) calcifications are occasionally noted on CT images of the brain and temporal bone. (ovid.com)
  • On the interior of the skull, the petrous portion of each temporal bone forms the prominent, diagonally oriented petrous ridge in the floor of the cranial cavity. (chromoscience.com)
  • The internal auditory meatus (opening of inner ear) is present in this part of the temporal bone. (anatomic.us)
  • It connects to the middle and inner ear cavities of the temporal bone. (chromoscience.com)
  • The temporal bone forms the lateral or side part of the skull which comprises of mainly middle and inner ear crossed by bunches of brain or nerves of the brain. (1mg.com)
  • Aneurysmal bone cysts (ABC) are benign neoplasms frequently occurring in the long tubular bones. (ovid.com)
  • Osteochondromas are the most common benign tumor of the bones which are cartilage-capped exophytic lesions that arises from the bone cortex. (istanbulc.edu.tr)
  • Giant cell tumor is a benign but locally aggressive bone neoplasm which uncommonly involves the skull. (biomedcentral.com)