Cranial Fossa, Middle
The compartment containing the anterior extremities and half the inferior surface of the temporal lobes (TEMPORAL LOBE) of the cerebral hemispheres. Lying posterior and inferior to the anterior cranial fossa (CRANIAL FOSSA, ANTERIOR), it is formed by part of the TEMPORAL BONE and SPHENOID BONE. It is separated from the posterior cranial fossa (CRANIAL FOSSA, POSTERIOR) by crests formed by the superior borders of the petrous parts of the temporal bones.
Cranial Fossa, Anterior
Cranial Fossa, Posterior
The infratentorial compartment that contains the CEREBELLUM and BRAIN STEM. It is formed by the posterior third of the superior surface of the body of the sphenoid (SPHENOID BONE), by the occipital, the petrous, and mastoid portions of the TEMPORAL BONE, and the posterior inferior angle of the PARIETAL BONE.
Skull Base
Arachnoid Cysts
Intracranial or spinal cavities containing a cerebrospinal-like fluid, the wall of which is composed of arachnoidal cells. They are most often developmental or related to trauma. Intracranial arachnoid cysts usually occur adjacent to arachnoidal cistern and may present with HYDROCEPHALUS; HEADACHE; SEIZURES; and focal neurologic signs. (From Joynt, Clinical Neurology, 1994, Ch44, pp105-115)
Cranial Nerve Neoplasms
Trigeminal Nerve Diseases
Diseases of the trigeminal nerve or its nuclei, which are located in the pons and medulla. The nerve is composed of three divisions: ophthalmic, maxillary, and mandibular, which provide sensory innervation to structures of the face, sinuses, and portions of the cranial vault. The mandibular nerve also innervates muscles of mastication. Clinical features include loss of facial and intra-oral sensation and weakness of jaw closure. Common conditions affecting the nerve include brain stem ischemia, INFRATENTORIAL NEOPLASMS, and TRIGEMINAL NEURALGIA.
Temporal Bone
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).
Skull Base Neoplasms
Facial Nerve Diseases
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.
Dura Mater
Arnold-Chiari Malformation
A group of congenital malformations involving the brainstem, cerebellum, upper spinal cord, and surrounding bony structures. Type II is the most common, and features compression of the medulla and cerebellar tonsils into the upper cervical spinal canal and an associated MENINGOMYELOCELE. Type I features similar, but less severe malformations and is without an associated meningomyelocele. Type III has the features of type II with an additional herniation of the entire cerebellum through the bony defect involving the foramen magnum, forming an ENCEPHALOCELE. Type IV is a form a cerebellar hypoplasia. Clinical manifestations of types I-III include TORTICOLLIS; opisthotonus; HEADACHE; VERTIGO; VOCAL CORD PARALYSIS; APNEA; NYSTAGMUS, CONGENITAL; swallowing difficulties; and ATAXIA. (From Menkes, Textbook of Child Neurology, 5th ed, p261; Davis, Textbook of Neuropathology, 2nd ed, pp236-46)
Central Nervous System Vascular Malformations
Ethmoid Bone
Osteoma
Ethmoid Sinus
Infratentorial Neoplasms
Intracranial tumors originating in the region of the brain inferior to the tentorium cerebelli, which contains the cerebellum, fourth ventricle, cerebellopontine angle, brain stem, and related structures. Primary tumors of this region are more frequent in children, and may present with ATAXIA; CRANIAL NERVE DISEASES; vomiting; HEADACHE; HYDROCEPHALUS; or other signs of neurologic dysfunction. Relatively frequent histologic subtypes include TERATOMA; MEDULLOBLASTOMA; GLIOBLASTOMA; ASTROCYTOMA; EPENDYMOMA; CRANIOPHARYNGIOMA; and choroid plexus papilloma (PAPILLOMA, CHOROID PLEXUS).
Tomography, X-Ray Computed
Sphenoid Bone
An irregular unpaired bone situated at the SKULL BASE and wedged between the frontal, temporal, and occipital bones (FRONTAL BONE; TEMPORAL BONE; OCCIPITAL BONE). Sphenoid bone consists of a median body and three pairs of processes resembling a bat with spread wings. The body is hollowed out in its inferior to form two large cavities (SPHENOID SINUS).
Petrous Bone
Mucocele
Neurilemmoma
A neoplasm that arises from SCHWANN CELLS of the cranial, peripheral, and autonomic nerves. Clinically, these tumors may present as a cranial neuropathy, abdominal or soft tissue mass, intracranial lesion, or with spinal cord compression. Histologically, these tumors are encapsulated, highly vascular, and composed of a homogenous pattern of biphasic fusiform-shaped cells that may have a palisaded appearance. (From DeVita Jr et al., Cancer: Principles and Practice of Oncology, 5th ed, pp964-5)
Zygoma
Hematoma, Subdural
Accumulation of blood in the SUBDURAL SPACE between the DURA MATER and the arachnoidal layer of the MENINGES. This condition primarily occurs over the surface of a CEREBRAL HEMISPHERE, but may develop in the spinal canal (HEMATOMA, SUBDURAL, SPINAL). Subdural hematoma can be classified as the acute or the chronic form, with immediate or delayed symptom onset, respectively. Symptoms may include loss of consciousness, severe HEADACHE, and deteriorating mental status.
Magnetic Resonance Imaging
Chondromatosis, Synovial
Rare, benign, chronic, progressive metaplasia in which cartilage is formed in the synovial membranes of joints, tendon sheaths, or bursae. Some of the metaplastic foci can become detached producing loose bodies. When the loose bodies undergo secondary calcification, the condition is called synovial osteochondromatosis.
Hematoma, Subdural, Intracranial
Subdural Effusion
Arachnoid
Frontal Sinus
Meningeal Neoplasms
Facial Paralysis
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.
Hematoma, Epidural, Cranial
Accumulation of blood in the EPIDURAL SPACE between the SKULL and the DURA MATER, often as a result of bleeding from the MENINGEAL ARTERIES associated with a temporal or parietal bone fracture. Epidural hematoma tends to expand rapidly, compressing the dura and underlying brain. Clinical features may include HEADACHE; VOMITING; HEMIPARESIS; and impaired mental function.
Sphenoid Sinus
Pterygopalatine Fossa
Arteriovenous Fistula
An abnormal direct communication between an artery and a vein without passing through the CAPILLARIES. An A-V fistula usually leads to the formation of a dilated sac-like connection, arteriovenous aneurysm. The locations and size of the shunts determine the degree of effects on the cardiovascular functions such as BLOOD PRESSURE and HEART RATE.
Ear, Middle
Cavernous Sinus
Cerebral Angiography
Imaging, Three-Dimensional
The process of generating three-dimensional images by electronic, photographic, or other methods. For example, three-dimensional images can be generated by assembling multiple tomographic images with the aid of a computer, while photographic 3-D images (HOLOGRAPHY) can be made by exposing film to the interference pattern created when two laser light sources shine on an object.
Dandy-Walker Syndrome
A congenital abnormality of the central nervous system marked by failure of the midline structures of the cerebellum to develop, dilation of the fourth ventricle, and upward displacement of the transverse sinuses, tentorium, and torcula. Clinical features include occipital bossing, progressive head enlargement, bulging of anterior fontanelle, papilledema, ataxia, gait disturbances, nystagmus, and intellectual compromise. (From Menkes, Textbook of Child Neurology, 5th ed, pp294-5)
Posterior Cerebral Artery
Posterior Cruciate Ligament
Cerebellar Neoplasms
Primary or metastatic neoplasms of the CEREBELLUM. Tumors in this location frequently present with ATAXIA or signs of INTRACRANIAL HYPERTENSION due to obstruction of the fourth ventricle. Common primary cerebellar tumors include fibrillary ASTROCYTOMA and cerebellar HEMANGIOBLASTOMA. The cerebellum is a relatively common site for tumor metastases from the lung, breast, and other distant organs. (From Okazaki & Scheithauer, Atlas of Neuropathology, 1988, p86 and p141)
Treatment Outcome
Uveitis, Posterior
Cerebellar Diseases
Hypothalamus, Posterior
The part of the hypothalamus posterior to the middle region consisting of several nuclei including the medial maxillary nucleus, lateral mammillary nucleus, and posterior hypothalamic nucleus (posterior hypothalamic area). The posterior hypothalamic area is concerned with control of sympathetic responses and is sensitive to conditions of decreasing temperature and controls the mechanisms for the conservation and increased production of heat.
Fourth Ventricle
An irregularly shaped cavity in the RHOMBENCEPHALON, located between the MEDULLA OBLONGATA; the PONS; and the isthmus in front, and the CEREBELLUM behind. It is continuous with the central canal of the cord below and with the CEREBRAL AQUEDUCT above, and through its lateral and median apertures it communicates with the SUBARACHNOID SPACE.
Ossification of Posterior Longitudinal Ligament
Cerebellar infarct caused by spontaneous thrombosis of a developmental venous anomaly of the posterior fossa. (1/258)
Spontaneous thrombosis of a posterior fossa developmental venous anomaly (DVA) caused a nonhemorrhagic cerebellar infarct in a 31-year-old man who also harbored a midbrain cavernous angioma. DVA thrombosis was well depicted on CT and MR studies and was proved at angiography by the demonstration of an endoluminal clot. (+info)Abnormal prenatal sonographic findings in the posterior cranial fossa: a case of Joubert's syndrome. (2/258)
Joubert's syndrome is a well-documented but rare disorder characterized by a variable combination of central nervous system, respiratory, renal and eye anomalies. The most significant and constant neuropathological finding is partial or complete agenesis of the cerebellar vermis. The syndrome was first described by Joubert and colleagues as a familial agenesis of the cerebellar vermis and appears to be inherited as an autosomal recessive trait. A case of Joubert's syndrome is described in which second-trimester ultrasonography demonstrated abnormal findings in the fetal posterior fossa with associated renal abnormalities. However, postnatal sonography of the posterior fossa could not confirm the prenatal findings, and the diagnosis of Joubert's syndrome was only later established by computed tomography of the neonatal brain in the knowledge of the characteristic clinical picture. (+info)Posterior fossa epithelial cyst: case report and review of the literature. (3/258)
A 49-year old woman with progressive cranial nerve signs and hemiparesis was found at MR imaging and at surgery to have a cyst at the foramen magnum. Immunohistochemistry and electron microscopy showed an epithelial cyst of endodermal origin. MR findings were of an extraaxial mass, with short T1 and T2 times. Unless immunohistochemistry and electron microscopy are used in the final diagnosis of such cysts, all posterior fossa cysts lined by a single layer of epithelium should be described simply as epithelial cysts. (+info)Magnetic resonance imaging supplements ultrasonographic imaging of the posterior fossa, pharynx and neck in malformed fetuses. (4/258)
OBJECTIVE: The objective of this study was to compare antepartum ultrasonography and magnetic resonance imaging (MRI) in the diagnosis and exclusion of malformations of the fetal neck, pharynx, skull base and posterior fossa in late pregnancy. MATERIALS AND METHODS: The study involved 26 women and 27 fetuses with ultrasonographically or clinically suspected abnormalities of the fetal neck, pharynx or central nervous system (CNS). Findings obtained by ultrasound were compared with those obtained by MRI (1.5 T) in the last trimester. RESULTS: In cases with CNS malformation (n = 19), MRI provided additional information on the anatomy of the foramen magnum and posterior fossa in nine cases (47%). When antepartum ultrasonography indicated malformation of the soft tissues of the neck or pharynx (n = 8), MRI provided additional information on diagnosis or exclusion of the abnormality in six cases (75%). The imaging capacity of the anatomy of the naso-, oro- and hypopharynx, trachea, esophagus and cervical skin outlines was better with MRI. CONCLUSIONS: MRI proved to be a valuable supplementary method to ultrasound in obtaining accurate information from the fetal neck, pharynx and posterior fossa, particularly when acoustic shadowing by bony structures or adjacent malformation impaired the quality of the ultrasonographic examination. (+info)Midline cerebellar cystic schwannoma : a case report. (5/258)
An extremely unusual case of a cystic schwannoma in the region of the inferior vermis and posterior to the fourth ventricle in a fifteen year old boy is reported. The cystic tumour caused partial obstruction to the outflow of cerebrospinal fluid from fourth ventricle and resulted in development of supratentorial hydrocephalus. On investigations, the schwannoma simulated a Dandy-Walker cyst. The boy presented with symptoms of increased intracranial pressure. On surgery, the lesion was not arising from any cranial nerve, nor was it attached to brain parenchyma, blood vessel or to the dura. The possible histogenesis of the cystic schwannoma in a rare location is discussed. (+info)Avulsion fracture of the anterior half of the foramen magnum involving the bilateral occipital condyles and the inferior clivus--case report. (6/258)
A 38-year-old male presented with an avulsion fracture of the anterior half of the foramen magnum due to a traffic accident. He had palsy of the bilateral VI, left IX, and left X cranial nerves, weakness of his left upper extremity, and crossed sensory loss. He was treated conservatively and placed in a halo brace for 16 weeks. After immobilization, swallowing, hoarseness, and left upper extremity weakness improved. Hyperextension with a rotatory component probably resulted in strain in the tectorial membrane and alar ligaments, resulting in avulsion fracture at the sites of attachment, the bilateral occipital condyles and the inferior portion of the clivus. Conservative treatment is probably optimum even for this unusual and severe type of occipital condyle fracture. (+info)Neurodevelopmental outcome after antenatal diagnosis of posterior fossa abnormalities. (7/258)
Posterior fossa abnormalities are sonographically diagnosable in the fetus. Anomalies of this region include Dandy-Walker malformation, enlarged cisterna magna, and arachnoid cyst. Despite prenatal diagnosis, the uncertainties related to natural history and neurodevelopmental outcome in survivors make patient counseling difficult. The purposes of this study were to determine the accuracy of prenatal diagnosis of these lesions and elucidate long-term neurodevelopmental outcome in survivors in prenatally diagnosed posterior fossa abnormalities. Fifteen cases of posterior fossa abnormalities were reviewed. Antenatal diagnoses of Dandy-Walker malformation was made in 13 of these cases, arachnoid cyst in one case, and enlarged cisterna magna in one case. Hydrocephalus was present in 66% of patients. The sonographic diagnosis was concordant with the pathologic or neonatal radiologic diagnosis in 13 of 15 cases. Seven fetuses (47%) exhibited additional cranial or extracranial anomalies. A karyotypic abnormality (trisomy 18) was found in one of 15 cases of posterior fossa abnormalities. Neurodevelopmental delay was present in 80% of survivors with follow-up study to 4 years of age. Prenatal diagnosis of posterior fossa abnormalities is highly accurate, yet the differential diagnosis can be challenging. Cognitive and psychomotor developmental delays remain commonplace despite early diagnosis and treatment. The approach with families in cases of prenatal diagnosis of posterior fossa abnormalities should include a search for additional central nervous system and extra-central nervous system anomalies in the fetus and counseling of parents regarding potential adverse outcome for survivors. (+info)Tumour type and size are high risk factors for the syndrome of "cerebellar" mutism and subsequent dysarthria. (8/258)
OBJECTIVE: "Cerebellar mutis" and subsequent dysarthria (MSD) is a documented complication of posterior fossa surgery in children. In this prospective study the following risk factors for MSD were assessed: type, size and site of the tumour; hydrocephalus at presentation and after surgery, cerebellar incision site, postoperative infection, and cerebellar swelling. METHODS: In a consecutive series of 42 children with a cerebellar tumour, speech and neuroradiological studies (CT and MRI) were systematically analysed preoperatively and postoperatively. Speech was assessed using the Mayo Clinic lists and the severity of dysarthria using the Michigan rating scale. RESULTS: Twelve children (29%) developed MSD postoperatively. The type of tumour, midline localisation, and vermal incision were significant single independent risk factors. In addition, an interdependency of possible risk factors (tumour>5 cm, medulloblastoma) was found. CONCLUSION: MSD often occurs after paediatric cerebellar tumour removal and is most likely after removal of a medulloblastoma with a maximum lesion diameter>5 cm. (+info)
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Arachnoiditis of posterior cranial fossa (blindness, deafness, hemiplegia). Her cure was recognised on 15 August 1956. Visited ...
Cerebellum
The cerebellum is located in the posterior cranial fossa. The fourth ventricle, pons and medulla are in front of the cerebellum ... the posterior lobe (below the primary fissure), and the flocculonodular lobe (below the posterior fissure). These lobes divide ... The medial zone of the anterior and posterior lobes constitutes the spinocerebellum, also known as paleocerebellum. This sector ... Campbell J, Gilbert WM, Nicolaides KH, Campbell S (August 1987). "Ultrasound screening for spina bifida: cranial and cerebellar ...
Atypical teratoid rhabdoid tumor
About 60% will be in the posterior cranial fossa (particularly the cerebellum). One review estimated 52% in the posterior fossa ... Since many of the tumors occur in the posterior fossa, they present like other posterior fossa tumors, often with headache, ... are located in the posterior fossa or cerebellar area. The ASCO study showed 52% posterior fossa; 39% sPNET; 5% pineal; 2% ... Taylor MD, Gokgoz N, Andrulis IL, Mainprize TG, Drake JM, Rutka JT (April 2000). "Familial posterior fossa brain tumors of ...
Groove for sigmoid sinus
... is a groove in the posterior cranial fossa. It starts at lateral parts of occipital bone, curves ... around jugular process, and ends at posterior inferior angle of parietal bone. After that, groove for sigmoid sinus continues ...
Skull fracture
... the roof of orbits in the anterior cranial fossa, and the areas between the mastoid and dural sinuses in the posterior cranial ... The middle cranial fossa, a depression at the base of the cranial cavity forms the thinnest part of the skull and is thus the ... "Growing skull fracture of the posterior cranial fossa and of the orbital roof". Acta Neurochir (Wien). 145 (3): 201-8, ... A cranial burst skull fracture, usually occurring with severe injuries in infants less than 1 year of age, is a closed, ...
Occipital bone
The inner surface of the occipital bone forms the base of the posterior cranial fossa. The foramen magnum is a large hole ... Like the other cranial bones, it is classed as a flat bone. Due to its many attachments and features, the occipital bone is ... The basion is the most anterior point of the opening and the opisthion is the point on the opposite posterior part. The basion ... The occipital bone (/ˌɒkˈsɪpɪtəl/) is a cranial dermal bone and the main bone of the occiput (back and lower part of the skull ...
Subdural hematoma
They also occur in the posterior cranial fossa, and near the falx cerebri and tentorium cerebelli. Unlike epidural hematomas, ...
Pacchionian foramen
... the small posterior space- the posterior cranial fossa contains the cerebellum, the pons, and the medulla. Clinical Anatomical ... The larger anterior space includes the anterior and middle cranial fossas and lodges the cerebrum; ... The tentorium cerebelli divides the cranial cavity into two closed spaces which communicate with each other through the ...
Basilar skull fracture
... s are divided into anterior fossa, middle fossa and posterior fossa fractures. Facial fractures often ... Surgery may be performed to seal a CSF leak that does not stop, to relieve pressure on a cranial nerve or repair injury to a ... Due to the proximity of the cranial nerves, injury to those nerves may occur. This can cause loss of function of the facial ... Serious cases usually result in death Basilar skull fractures include breaks in the posterior skull base or anterior skull base ...
Endolymphatic sac tumor
The tumor destroys the mastoid air spaces and extends into the middle ear and/or posterior cranial fossa. The microscopic ... The tumor involves the endolymphatic sac, a portion of the intraosseous inner ear of the posterior petrous bone. Heffner DK ( ...
Microvascular decompression
Walter Dandy in 1925 was an advocate of partial sectioning of the nerve in the posterior cranial fossa. During this procedure ... along with other cranial nerve neuralgias) a pain syndrome characterized by severe episodes of intense facial pain, and ...
Occipital artery
Meningeal branch: supplies the dura mater in the posterior cranial fossa Descending branches: This is the largest branch. It ... Its path is below the posterior belly of digastric to the occipital region. This artery supplies blood to the back of the scalp ... At its origin, it is covered by the posterior belly of the digastricus and the stylohyoideus, and the hypoglossal nerve winds ... It then changes its course and runs vertically upward, pierces the fascia connecting the cranial attachment of the trapezius ...
Parinaud's syndrome
Neoplasms and giant aneurysms of the posterior fossa have also been associated with the midbrain syndrome. Vertical ... Diagnosis can be made via combination of physical exam, particularly deficits of the relevant cranial nerves. Confirmation can ... origin of cranial nerve III) and Edinger-Westphal nuclei, causing dysfunction to the motor function of the eye. Classically, it ...
Facial nerve
From the brain stem, the motor and sensory parts of the facial nerve join together and traverse the posterior cranial fossa ... The intermediate nerve reaches the posterior cranial fossa via the internal acoustic meatus before synapsing in the solitary ... It arises from the brainstem from an area posterior to the cranial nerve VI (abducens nerve) and anterior to cranial nerve VIII ... The facial nerve, also known as the seventh cranial nerve, cranial nerve VII, or simply CN VII, is a cranial nerve that emerges ...
Falx cerebelli
Shoja MM, Tubbs RS, Khaki AA, Shokouhi G. A rare variation of the posterior cranial fossa: duplicated falx cerebelli, occipital ... Shoja MM, Tubbs RS, Khaki AA, Shokouhi G. A rare variation of the posterior cranial fossa: duplicated falx cerebelli, occipital ... A complex dural-venous variation in the posterior cranial fossa: a triplicate falx cerebelli and an aberrant venous sinus. ... A triple dural-venous variation in the posterior cranial fossa: A duplicated plus accessory falx cerebelli and an aberrant ...
Hydrocephalus
... cochlear aqueduct connects the Perilymphatic space of the inner ear with the subarachnoid space of the posterior cranial fossa ... The cranial bones fuse by the end of the third year of life. For head enlargement to occur, hydrocephalus must occur before ... Since the skull bones have not yet firmly joined, bulging, firm anterior and posterior fontanelles may be present even when the ...
Pediatric ependymoma
... s most often occur in the posterior cranial fossa, in contrast with adult ependymomas which usually occur ... U-King-Im, JM; Taylor, MD; Raybaud, C (2010). "Posterior fossa ependymomas: New radiological classification with surgical ... Tumors that occur in the posterior fossa have also been shown to have a less favorable prognosis. Expression of TERT in ... posterior fossa), intracranial supratentorial, and spinal ependymoma, and subependymomas. Reports have shown that location- ...
Epidural hematoma
In the case of epidural hematoma in the posterior cranial fossa, tonsillar herniation causes Cushing's triad: hypertension, ... In children, however, they occur with similar frequency in the occipital, frontal, and posterior fossa regions. Epidural bleeds ... The eye will be positioned down and out due to unopposed innervation of the fourth and sixth cranial nerves.[citation needed] ... As blood accumulates, it starts to compress intracranial structures, which may impinge on the third cranial nerve, causing a ...
Skull
... middle and posterior cranial fossae changes rapidly. The anterior cranial fossa changes especially during the first trimester ... These cranial measurements are the basis of what is known as craniology. These cranial measurements were also used to draw a ... "Clinical anatomy of the human anterior cranial fossa during the prenatal period". Folia Morphologica. 62 (3): 271-3. PMID ... forms the protective cranial cavity that surrounds and houses the brain and brainstem. The upper areas of the cranial bones ...
Octreotide
... or surgery or radiation to treat posterior cranial fossa tumors. With the VMH disabled and no longer responding to peripheral ...
Chiari malformation
Neuroradiological diagnostics evaluate the severity of crowding of the neural structures within the posterior cranial fossa and ... In normal adults, the posterior fossa comprises 27% of the total intracranial space, while in adults with Chiari Type I, it is ... Tubbs RS, Elton S, Grabb P, Dockery SE, Bartolucci AA, Oakes WJ (May 2001). "Analysis of the posterior fossa in children with ... These modifications resulted in significant reduction of the size of the posterior fossa in modern humans. ...
Vagotomy
... injured by ongoing treatment for acute lymphoblastic leukemia or surgery or radiation to treat posterior cranial fossa tumors. ... Retrieved 17 June 2013.{{cite journal}}: CS1 maint: location (link) Lygidakis NJ (March 1984). "Posterior truncal vagotomy and ...
Metrizamide
Care is given to prevent spilling dye into the posterior cranial fossa (back of the head) or to enter the cranial cavity in ... With metrizamide the issue is that if entering the cranial cavity and high dose exposure to the blood brain barrier, side ...
Vertebral artery dissection
The vertebral artery supplies a number of vital structures in the posterior cranial fossa, such as the brainstem, the ... The vertebral artery supplies the part of the brain that lies in the posterior fossa of the skull, and this type of stroke is ... therefore called a posterior circulation infarct. Problems may include difficulty speaking or swallowing (lateral medullary ...
Meningeal branch of vagus nerve
The neuron cell bodies reside within the superior ganglion and innervate the dura mater in the posterior cranial fossa of the ... Keller, Jeffrey T.; Saunders, Mary C.; Beduk, Altay; Jollis, James G. (1985-01-01). "Innervation of the posterior fossa dura of ... Kemp, William J.; Tubbs, R. Shane; Cohen-Gadol, Aaron A. (2012-11-01). "The Innervation of the Cranial Dura Mater: ...
Superior ganglion of vagus nerve
The superior ganglion contains neurons which innervate some of the dura mater lining the posterior cranial fossa via the ... Keller JT, Saunders MC, Beduk A, Jollis JG (January 1985). "Innervation of the posterior fossa dura of the cat". Brain Research ... Kemp WJ, Tubbs RS, Cohen-Gadol AA (November 2012). "The innervation of the cranial dura mater: neurosurgical case correlates ... often by the posterior inferior cerebellar artery). The affected neurons are found in the superior ganglion and innervate the ...
Carotid canal
... where the latter is located inside the posterior cranial fossa. The carotid canal is separated from middle ear and inner ear by ... The carotid canal is located within the middle cranial fossa, at the petrous part of the temporal bone. Anteriorly, it is ... is a passageway in the temporal bone of the skull through which the internal carotid artery enters the middle cranial fossa ... limited by posterior margin of the greater wing of sphenoid bone. Posteromedially, it is limited by basilar part of occipital ...
Internal auditory meatus
It is located inside the posterior cranial fossa of the skull, near the center of the posterior surface of the petrous part of ... is a canal within the petrous part of the temporal bone of the skull between the posterior cranial fossa and the inner ear. The ... posterior superior - superior vestibular area (contains superior division of vestibular nerve) posterior inferior - inferior ... then divides the upper passage into anterior and posterior sections. Although there are three osseous canals, the fundus is ...
Photophobia
... photophobia can sometimes precede the clinical diagnosis by years Subarachnoid haemorrhage Tumor of the posterior cranial fossa ...
Head injury
... posterior fossa, and subtemporal and sub frontal regions. However, patients with pacemakers, metallic implants, or other metal ... CT scans can show brain bleeds, fractures of the skull, fluid build up in the brain that will lead to increased cranial ... The symptoms of Wernicke's aphasia are caused by damage to the posterior section of the superior temporal gyrus. Damage to the ... Broca's aphasia is indicative of damage to the posterior inferior frontal gyrus of the brain. An impairment following damage to ...
মানব পরিপাকতন্ত্র - উইকিপিডিয়া
Posterior · Glossoepiglottic folds · Lingual septum ... করোটীয় স্নায়ু (Cranial nerve). *সুষুম্নীয় স্নায়ু (Spinal ...
Nervi - Viquipèdia, l'enciclopèdia lliure
Alexandru D, Satyadev R, So W «Neurothekeoma in the posterior fossa: case report and literature review» (en anglès). Perm J, ... II parell cranial Nervi òptic Sensitiu Visió III parell cranial Nervi motor ocular comú Mixt (principalment motor) Moviment ... IV parell cranial Nervi patètic Mixt (principalment motor) Moviment globus ocular V parell cranial Nervi trigemin Mixt ... XII parell cranial Nervi hipoglòs Mixt (principalment motor) Innervació musculatura lingual El parell cranial XIII, nervi ...
Skull
... middle and posterior cranial fossae changes rapidly. The anterior cranial fossa changes especially during the first trimester ... These cranial measurements are the basis of what is known as craniology. These cranial measurements were also used to draw a ... "Clinical anatomy of the human anterior cranial fossa during the prenatal period". Folia Morphologica. 62 (3): 271-3. PMID ... forms the protective cranial cavity that surrounds and houses the brain and brainstem.[6] The upper areas of the cranial bones ...
Posterior cranial fossa
Animation Posterior cranial fossa at human fetus Base of skull Posterior cranial fossa Posterior cranial fossa A tumor of the ... Anterior cranial fossa Middle cranial fossa Wikimedia Commons has media related to Posterior cranial fossa. Anatomy photo:22:os ... The posterior cranial fossa is part of the cranial cavity, located between the foramen magnum and tentorium cerebelli. It ... Lies in the anterior wall of the posterior cranial fossa. It transmits the facial (VII) and vestibulocochlear (VIII) cranial ...
Herrerasaurus
... and the humeral entepicondyle is ridge-like with anterior and posterior depressions; and the posterior border of the ilial ... This cranial specialization is unusual among dinosaurs but has evolved independently in some lizards. The rear of the lower jaw ... Novas found that the primitive features of lacking a brevis fossa and having only two sacral vertebrae were simply reversals ... An extensive study of Herrerasaurus by Sereno in 1992 suggested that of these proposed synapomorphies, only one cranial and ...
Occipital condyles
... and possibly lower cranial nerve (IX, X, XI, XII) deficits, tetraparesis or abnormal breathing. Among these, cranial nerve ... are closer together than their posterior, and encroach on the basilar portion of the bone; the posterior extremities extend ... Atlas Condyloid fossa Watts E (January 2020). "Occipital Condyle Fractures". Ortho Bullets. Lineage Medical, Inc. Retrieved 22 ... Surgery may become necessary if there is significant compression of the brainstem, spinal cord, the lower cranial nerves or ...
Infratemporal fossa
This can be surgically removed through the middle cranial fossa. The infratemporal fossa can also be used to approach other ... Finally, the mylohyoid groove descends obliquely transmitting the mylohyoid nerve the only motor branch of the posterior ... The infratemporal fossa can be imaged using a CT scan. Infratemporal fossa Infratemporal fossa. Lingual and inferior alveolar ... enters infratemporal fossa from the middle cranial fossa through the foramen ovale of the sphenoid bone. The mandibular nerve ...
Choroid plexus tumor
J.H. Shin, H.K. Lee, A.K. Jeong, S.H. Park, C.G. Choi, D.C. Suh, Choroid plexus papilloma in the posterior cranial fossa: MR, ... S.J. Pawar, R.R. Sharma, A.K. Mahapatra, S.D. Lad, M.M. Musa, Choroid plexus papilloma of the posterior third ventricle during ... Macrocephaly, splayed cranial sutures, fontanel widening/bulging, and forced downward look, often known as sunset eyes, are ... A. Mishra, B.K. Ojha, A. Chandra, S.K. Singh, N. Chandra, C. Srivastava, Choroid plexus papilloma of posterior third ventricle ...
Dilophosaurus
The posterior centrodiapophyseal lamina of the cervicals showed serial variation, bifurcating and reuniting down the neck, a ... Welles did not find evidence of cranial kinesis in the skull of Dilophosaurus, a feature that allows individual bones of the ... The arches of the cervical vertebrae also had pneumatic fossae (or chonoses), conical recesses so large that the bones ... They suggested that the cranial crests of Cryolophosaurus and Sinosaurus had either evolved convergently, or were a feature ...
Zygomatic arch
a posterior, which runs backward above the external acoustic meatus and is continuous with the supramastoid crest. The upper ... The zygomatic process of the temporal arises by two roots: an anterior, directed inward in front of the mandibular fossa, where ... "In vivo strain in cranial sutures: The zygomatic arch". Journal of Morphology. 207 (3): 225-239. doi:10.1002/jmor.1052070302. ...
Nicrosaurus
... posterior rim of nares behind anterior rim of antorbital fenestra Infranasal recess is present Reduced antorbital fossa Convex ... A more recent analysis on available post-cranial bones has provided results that further support the idea of Nicrosaurus being ... and posterior process): angular Length of posterior process of squamosal: moderate Lateral flange of the squamosal is absent ... Long snout Ventrally convex alveolar rim of maxilla Tripartite upper dentition Posterior rim of nares behind anterior rim of ...
Heterodontosaurus
A depression above the snout has been termed the "nasal fossa" or "sulcus". A similar fossa is also seen in Tianyulong, ... Eleven tall and chisel-like cheek-teeth lined each side of the posterior parts of the upper jaw, which were separated from the ... ISBN 978-0-375-82419-7. Butler, Richard J; Porro, Laura B; Galton, Peter M; Chiappe, Luis M (2012). "Anatomy and Cranial ... Ventrally, the antorbital fossa was bounded by a prominent bony ridge, to which the animal's fleshy cheek would have been ...
List of skin conditions
Poland anomaly Posterior fossa malformations-hemangiomas-arterial anomalies-cardiac defects-eye abnormalities-sternal cleft and ... cranial arteritis, Horton's disease) Thromboangiitis obliterans (Buerger's disease) Thrombotic thrombocytopenic purpura ( ... posterior pigmented pruritic patch, subscapular pruritus) Postencephalitic trophic ulcer Psychogenic pruritus Riley-Day ... skin fossa) Superficial lymphatic malformation (lymphangioma circumscriptum) Supernumerary nipple (accessory nipple, ...
Taowu liui
Likewise, a cranial narrowing behind the orbits was only rather weakly pronounced. In lateral view, the frontal line showed a ... The anterior palatal window was at the level of the canine, and the largest posterior one was at the level of the third ... As a diagnostic feature, the glenoid fossa was on a raised platform, more prominent than in Amphimachairodus, and was very wide ... Overall, the tooth appeared elongated at a length of just under 2 cm, as did the much larger posterior premolar, which grew to ...
Cephalometric analysis
... of the middle cranial fossa The contour of the cribriform plate Details in the trabecular system in the anterior cranial fossa ... Posterior Arc - Arc of a circle between anterior cranial base and mandibular base with O as centre and OSp as radius. Basal Arc ... "The cranial base: The postnatal development of the cranial base studied histologically on human autopsy material". American ... The point O is located in the posterior cranial base. This method categorized the vertical and the horizontal relationship and ...
Ventastega
Based on the morphology of both cranial and post-cranial elements discovered (see below), Ventastega is more primitive than ... The maxilla is long and low, and unlike some fish, the posterior third of the maxilla is the lowest part of the bone. The teeth ... along with the basipterygoid processes and laterally open post-temporal fossae. The clavicle has a broad ventral blade with a ... This, combined with other cranial and post-cranial elements of Ventastega, made researchers predict that it was larger than ...
Oculomotor nerve
The oculomotor nerve, also known as the third cranial nerve, cranial nerve III, or simply CN III, is a cranial nerve that ... It passes between the superior cerebellar (below) and posterior cerebral arteries (above), and then pierces the dura mater ... a groove on the lateral wall of the interpeduncular fossa). On emerging from the brainstem, the nerve is invested with a sheath ... Cranial nerves III, IV, and VI are usually tested together as part of the cranial nerve examination. The examiner typically ...
Leptomeningeal cancer
Individuals whose cancer has spread to an area of the brain known as the posterior fossa have a greater risk of developing a ... Third, there may be a pattern of nodular deposits of tumor on cranial and spinal nerve roots, frequently without tumor cells ... These cells have the ability to penetrate the pial membrane and invade the spinal cord and cranial nerves. Infiltration from ... Other symptoms that are less common cranial nerve abnormalities, spinal symptoms such as limb weakness and paresthesia, and ...
Entelodont
The posterior tubercles may provide a link to the digastricus muscle which helps to open the jaws. Hippos, which have a ... The wide and tall temporal fossa allowed for a very large temporalis muscle, which extends from the side of the cranium to the ... and develop robust cranial bars to resist the resulting forces on the skull. The pterygoideus muscle, which follows a similar ... Generally, the posterior (rear) mandibular tubercles develop later in life than the anterior (front) pair, and none of the ...
Swallowing
... the tonsillar fossa, uvula and posterior pharyngeal wall. Stimuli from the receptors of this phase then provoke the pharyngeal ... This phase is voluntary and involves important cranial nerves: V (trigeminal), VII (facial) and XII (hypoglossal). For the ... In order for anterior to posterior transit of the bolus to occur, orbicularis oris contracts and adducts the lips to form a ... There is also the simultaneous approximation of the walls of the pharynx to the posterior free border of the soft palate, which ...
Mesentery
The cranial portion of the loop moves to the right and the caudal portion of the loop moves toward the left. This rotation ... The mesentery is an organ that attaches the intestines to the posterior abdominal wall in humans and is formed by the double ... aspect of the peritoneum overlying the mobile component of the mesosigmoid and the parietal peritoneum in the left iliac fossa ... The cranial portion of the loop will develop into the jejunum and most of the ileum, while the caudal part of the loop ...
Index of anatomy articles
... posterior column-medial lemniscus tract posterior commissure posterior communicating artery posterior cranial fossa posterior ... coxae cranial cranial autonomic ganglia cranial bone cranial nerve ganglia cranial nerve lesion cranial nerve nuclei cranial ... posterior inferior cerebellar artery posterior lobe of the cerebellum posterior nasal artery posterior septal artery posterior ... posterior atlantooccipital membrane posterior auricular artery posterior cerebral artery Posterior chamber of eyeball posterior ...
Aulacephalodon
A. peavoti is also found to have a wider and more upright scapula blade compared to A. bainii, with deeper fossa on the ... While both species share some similar post-cranial features, there are numerous differences in the shapes of various girdle and ... Two autamorphies used to define Geikiidae include (1) the posterior portion of the zygomatic arch thickened and/or downturned ... Diagnostic features of Aulacephalodon include (1) the size of their nasal bosses, (2) the shape and articulation of cranial ...
Midbrain
The nuclei of two pairs of cranial nerves are similarly located at the ventral side of the periaqueductal grey - the pair of ... The lateral part of the midbrain is supplied by the posterior cerebral artery. During embryonic development, the midbrain (also ... Beyond the midbrain, between the lobes, is the interpeduncular fossa, which is a cistern filled with cerebrospinal fluid[ ... the trochlear is the only cranial nerve to exit the brainstem dorsally. The Edinger-Westphal nucleus (which controls the shape ...
Posterior cranial fossa - Wikipedia
Animation Posterior cranial fossa at human fetus Base of skull Posterior cranial fossa Posterior cranial fossa A tumor of the ... Anterior cranial fossa Middle cranial fossa Wikimedia Commons has media related to Posterior cranial fossa. Anatomy photo:22:os ... The posterior cranial fossa is part of the cranial cavity, located between the foramen magnum and tentorium cerebelli. It ... Lies in the anterior wall of the posterior cranial fossa. It transmits the facial (VII) and vestibulocochlear (VIII) cranial ...
Occipital Intradiploic Pseudomeningocele - A Rare Complication of Pediatric Posterior Cranial Fossa Surgery: Case Report and...
Occipital Intradiploic Pseudomeningocele - A Rare Complication of Pediatric Posterior Cranial Fossa Surgery: Case Report and ... Conclusion: Pediatric patients undergoing posterior cranial fossa craniotomy/craniectomy may postoperatively develop OIP. In ... 2022). Occipital Intradiploic Pseudomeningocele - A Rare Complication of Pediatric Posterior Cranial Fossa Surgery: Case Report ... Conclusion: Pediatric patients undergoing posterior cranial fossa craniotomy/craniectomy may postoperatively develop OIP. In ...
Assessment of cognitive function before and after surgery for posterior cranial fossa lesions using computerized and...
... dle cranial fossa and lateral suboccipital approaches in 50 patients with posterior fossa lesions such as tumors and vascular ... dle cranial fossa and lateral suboccipital approaches in 50 patients with posterior fossa lesions such as tumors and vascular ... dle cranial fossa and lateral suboccipital approaches in 50 patients with posterior fossa lesions such as tumors and vascular ... dle cranial fossa and lateral suboccipital approaches in 50 patients with posterior fossa lesions such as tumors and vascular ...
IMSEAR at SEARO: Cysticercosis in the posterior cranial fossa.
Posterior View of Contents of the Posterior Cranial Fossa and Spinal Canal | Neuroanatomy | The Neurosurgical Atlas
Posterior view of contents of the posterior cranial fossa and spinal canal. Removal of occipital bone and laminectomy of the ... Posterior view of contents of the posterior cranial fossa and spinal canal. Removal of occipital bone and laminectomy of the ... Posterior View of Contents of the Posterior Cranial Fossa and Spinal Canal. 6703 ... Longitudinally directed posterior spinal arteries supply the posterior one-third of the spinal cord (the anterior spinal artery ...
Posterior fossa tumor: MedlinePlus Medical Encyclopedia
Posterior fossa tumor is a type of brain tumor located in or near the bottom of the skull. ... Symptoms from posterior fossa tumors also occur when the tumor damages local structures, such as the cranial nerves. Symptoms ... The best way to look at the posterior fossa is with an MRI scan. CT scans are not helpful to see that area of the brain in most ... The posterior fossa is a small space in the skull, found near the brainstem and cerebellum. The cerebellum is the part of the ...
Endoscopic endonasal transclival removal of tumors of the clivus and anterior region of the posterior cranial fossa (results of...
... localized to the clivus and anterior region of the posterior cranial fossa (65 men and 75 women). The age of patients ranged ... including central tumors of the anterior region of the posterior cranial fossa. From 2008 to the present time, the inpatient ... and lower neurovascular complexes of the posterior cranial fossa. The chordoma cases were distributed as follows according to ... endonasal transclival approach can be used to obtain access to the centrally located tumors of the posterior cranial fossa. It ...
Central Vertigo: Background, Pathophysiology, Epidemiology
... it often includes lesions of cranial nerve VIII as well. ... Posterior cranial fossa tumors in young adults. Laryngoscope. ... yet it often expands into the posterior fossa with secondary effects on other cranial nerves and the brain stem. ... MRI is preferred over CT scan for imaging lesions in the posterior fossa. ... The posterior inferior cerebellar artery branches from the vertebral artery, while the anterior inferior cerebellar artery and ...
Pediatric Hydrocephalus | Semantic Scholar
Cholesteatoma Treatment & Management: Approach Considerations, Mastoidectomy, Endoscopic Ear Surgery
... any viable brain can be pushed back up into the middle cranial fossa. If the defect is large, intradural and extradural repair ... Removal of the lateral and posterior walls of the epitympanum such that the tegmen mastoideum and tegmen tympani become a ... Lowering of the posterior bony external auditory wall to the level of the facial nerve ... The epitympanum is progressively enlarged, and the posterior canal wall is removed from the inside out. Bone removal is limited ...
Deutsch H - Search Results - PubMed
Bassett Collection - Lane Medical Library - Stanford University School of Medicine
Middle cranial fossa 3 . Branch of posterior cerebral artery 4 . Trochlear nerve (IV) ... Rhomboid fossa. The choroid plexus and tela chorioidea have been removed to expose the entire left half of the fourth ventricle ... Rhomboid fossa. Image #3-7. KEYWORDS: Brain, Medulla, Midbrain, Peripheral nervous system, Ventricules. ...
Alok Indraprakash Jaju - Fingerprint - Northwestern Scholars
Usefulness of Contrast-Enhanced T1-Weighted Sampling Perfection with Application-Optimized Contrasts by Using Different Flip...
Frontiers | The Role of Adjuvant Treatment in Craniofacial Malignancy: A Critical Review
It can be subdivided into three regions: the anterior, middle, and posterior cranial fossae. The most important anatomic ... This part of the skull base is aberrant to other regions of the cranial skeleton as it displays a unique configuration of an ... osseous cranial vault with depressions, ridges, and septa. The anterior skull base stretches between the posterior wall of the ... The skull base forms the floor of the cranial cavity and separates the brain from other facial structures. ...
Giant posterior fossa meningioma: the importance of early diagnosis and challenges concerning treatment | BMJ Case Reports
A retrosigmoid craniotomy was performed with total removal and cranial nerve functions preservation. Histology revealed a ... Posterior fossa lesions may present with behavioural changes and/or progressive neurological deficit. Patients may have ... Giant posterior fossa meningioma: the importance of early diagnosis and challenges concerning treatment ... Giant posterior fossa meningioma: the importance of early diagnosis and challenges concerning treatment ...
Danielle D. DeSouza's Profile | Stanford Profiles
Comparison of Diffusion-Weighted MRI Reconstruction Methods for Visualization of Cranial Nerves in Posterior Fossa Surgery. ... Images from 10 patients with posterior fossa tumors (4 male, mean age: 63.5), affecting either the trigeminal nerve (CN V) or ... XST offers the best combination of anatomical accuracy and speed of reconstruction of cranial nerves within this patient ... While TN is caused by neurovascular compression of the fifth cranial nerve (CN V), how MS-related demyelination correlates with ...
Skeletal System
3. Posterior cerebral fossa - contains medulla oblongata, pons, cerebellum, and the 5th to 12th cranial nerves. ... 2. Middle cranial fossa - contains pituitary gland, optic nerves and optic chiasma, temporal cerebral lobes, cranial nerves 3 ... B. Skull - Cranial Bones - 8 bones house brain, cranial nerves and cranial blood vessels; dipl e construction.. ... A. Skull - Cranial fossae of the cranial cavity.. http://ect.downstate.edu/courseware/haonline/labs/l22/os0803.htm ...
尋找研究成果 - 臺北醫學大學
A. Anatomy and Physiology for the Neuro-Ophthalmologist | Department of Ophthalmology and Visual Sciences
Bio2Vec
The Fascial Layers Attached to the Skull Base: A Cadaveric Study<...
Divergence Insufficiency: An Ongoing Challenge
Hypoglossal Nerve Diseases | Harvard Catalyst Profiles | Harvard Catalyst
Postual Control in Pediatric Chiari I Malformation | Clinical Research Trial Listing ( Chiari I Malformation | Pediatric ) (...
It consists in an osteo-dural decompression of the posterior fossa. Surgical decision is formal when at least one of the ... Brainstem compression signs and symptoms (central apneas syndrome, tetraparesis, paresthesia, cranial nerves disfunction...). ... due to a congenital small posterior fossa, which represent our focus of interest. Chiari malformation may leads to direct ...
Prenatal magnetic resonance imaging within the 26th week of gestation may predict the fate of isolated upward rotation of the...
Posterior cranial fossa; Brain Stem; Cerebellar Vermis; Cerebellum; Cranial Fossa, Posterior; Diagnosis, Differential; Female; ... The assessments included the BVA, clival-supraoccipital angle, transverse diameter of the posterior cranial fossa, tentorial ... The assessments included the BVA, clival-supraoccipital angle, transverse diameter of the posterior cranial fossa, tentorial ...
Browse | jns Journals
A 21-week fetal ultrasound of a nonspecific brain mass was confirmed with fetal MRI as a 2.7-cm T1-hyperintense posterior fossa ... Although a large flow void in the left middle cranial fossa was present, postnatal computed tomography angiography ultimately ... Cranial lesions were multiple osteolytic lesions associated with abscesses in the cranial bones. The patient initially received ... The middle fossa approach is an effective option for the treatment of small (Koos grade I and II) vestibular schwannomas (VSs) ...
Comparison of Minimally Invasive Occipito-Cervical Decompression with Standard Open Surgery For Type I Chiari Malformation:...
... is characterized by a shallow posterior fossa and hindbrain herniation through the foramen magnum. Posterior fossa ... a morphometric study of the posterior cranial fossa. J Neurosurg. 1997;86:40-47. 2. Lazareff J, Galarza M, Gravori T, Spinks T ... is characterized by a shallow posterior fossa and hindbrain herniation through the foramen magnum. Posterior fossa ... Posterior fossa decompression and reconstruction in adolescents and adults with the Chiari I malformation. Neurol Res. 2011;33: ...
NervesLesionsTumorTumorsCavityForamen magnumNerveOccipitalPituitaryLateralCraniotomyResectionCerebellumNeoplasmsDecompressionSpinal CanalSmall posteriorCerebral arteryDuraAnterior-to-posteriorBrainstemCerebrospinal fluidFacialFrontalOpticCraniectomyChiariTomographySurgeryLesionCerebellarBonesNeckOrbitEthmoidBranchArteriesApproachesPostoperative
Nerves12
- Symptoms from posterior fossa tumors also occur when the tumor damages local structures, such as the cranial nerves. (medlineplus.gov)
- An acoustic neuroma develops within the eighth cranial nerve, usually within the course of the internal auditory canal, yet it often expands into the posterior fossa with secondary effects on other cranial nerves and the brain stem. (medscape.com)
- If untreated, an acoustic neuroma may expand into the cerebellopontine angle and compress facial and other cranial nerves. (medscape.com)
- In 11 cases, intraoperative monitoring of the cranial nerves was performed (21 cranial nerves were identified). (biomedcentral.com)
- Surgical interventions involving the clivus, as well as other areas of the base of the skull, are associated with a number of limiting factors: significant depth of the surgical wound with a complex anatomical environment, including the major blood vessels and cranial nerves, and the effect of the tumor on the structures of the brain stem. (biomedcentral.com)
- 2. Middle cranial fossa - contains pituitary gland, optic nerves and optic chiasma, temporal cerebral lobes, cranial nerves 3 and 4. (cuny.edu)
- 3. Posterior cerebral fossa - contains medulla oblongata, pons, cerebellum, and the 5th to 12th cranial nerves. (cuny.edu)
- Thus possible sources of cervicogenic headache are: atlanto-occipital joint, median and lateral atlanto-axial joints, C2-3 intervertebral disc, C2-3 zygapophysial joint, upper posterior neck and paravertebral muscles, the trapezius and the sternocleidomastoid muscles, spinal and posterior cranial fossa dura matter, cervical spinal nerves and roots, and the vertebral artery. (asra.com)
- Background: Surgical treatment of recurrent, posterior cranial fossa epidermoids in multioperated patients carries significant morbidity, mainly due to tumor adhesion to cranial nerves and vessels, and brainstem involvement. (elsevier.com)
- Clinical signs are often nonspecific, and imaging is a critical step in evaluating the pediatric orbit, optic pathway, and cranial nerves that supply the orbital contents. (radiologykey.com)
- High-resolution 3-T MR imaging helps characterize orbital and ocular soft-tissue lesions, permitting superior delineation of orbital soft tissues, cranial nerves, blood vessels, and blood flow and detection of intracranial extension of orbital disease. (radiologykey.com)
- The ophthalmic artery and vein and cranial nerves enter the intraconal space through the annulus of Zinn. (radiologykey.com)
Lesions9
- Cognitive function has not been well studied after neurosurgery for posterior fossa lesions despite its potential importance in determining surgical indications and approaches. (elsevier.com)
- The present study evaluated changes in cognitive functions after posterior fossa surgery to detect any differences between the mid- dle cranial fossa and lateral suboccipital approaches in 50 patients with posterior fossa lesions such as tumors and vascular diseases. (elsevier.com)
- In clinical practice, it often includes lesions of cranial nerve VIII as well. (medscape.com)
- This review assesses the cystic lesions of posterior cranial fossa on the basis of embryological development, radiological findings and associated clinical aspects, in order to clarify the radiological differential diagnosis through embryology. (semanticscholar.org)
- Posterior fossa lesions may present with behavioural changes and/or progressive neurological deficit. (bmj.com)
- The authors herein present a 48-year-old male patient with disseminated MAC infectious lesions in the lungs and on the cranial, vertebral, femoral, and pelvic bones, a normal CD4 count, and immunopositivity for the interferon-ɤ (IFN-ɤ) neutralization antibody. (thejns.org)
- Cranial lesions were multiple osteolytic lesions associated with abscesses in the cranial bones. (thejns.org)
- however, cranial lesions worsened. (thejns.org)
- Therefore, multiple cranial lesions were removed via osteoplastic craniectomy and the postoperative course was uneventful. (thejns.org)
Tumor8
- Posterior fossa tumor is a type of brain tumor located in or near the bottom of the skull. (medlineplus.gov)
- If a tumor grows in the area of the posterior fossa, it can block the flow of spinal fluid and cause increased pressure on the brain and spinal cord. (medlineplus.gov)
- There is limited space in the posterior fossa, and the tumor can easily press on delicate structures if it grows. (medlineplus.gov)
- Headaches and focal neurologic findings in patients previously treated for cranial neoplasm raise concerns about recurrent tumor. (neurology.org)
- We describe three such patients whose symptoms began years after treatment with cranial irradiation and in whom extensive evaluations ruled out tumor recurrence but suggested an unusual complication. (neurology.org)
- He was treated with cranial irradiation (5,580 cGy to the tumor given as 4,140 cGy whole-brain radiation therapy and 1,440 cGy boost to the tumor volume) and chemotherapy. (neurology.org)
- The following applications are illustrated and discussed: 1) intraoperative monitoring of auditory function during posterior fossa tumor resection, 2) auditory brain stem response and VIIIth nerve monitoring during retrolabyrinthine vestibular nerve section, 3) monitoring of auditory function during microvascular decompression of cranial nerve VII, VIII, or IX, and 4) special applications related to cochlear implant surgery. (elsevier.com)
- Two women who suffered from facial nerve paralysis following surgical resection of a posterior fossa tumor were instructed by an expert beautician in the application of make-up to correct their facial imbalances. (elsevier.com)
Tumors9
- Most tumors of the posterior fossa are primary brain cancers. (medlineplus.gov)
- Posterior fossa tumors have no known causes or risk factors. (medlineplus.gov)
- Most tumors of the posterior fossa are removed with surgery, even if they are not cancerous. (medlineplus.gov)
- Acoustic neuromas are Schwann cell tumors that usually originate on the vestibular division of the eighth cranial nerve in the proximal internal auditory canal. (medscape.com)
- Until recently, tumors of the clivus and the anterior region of the posterior cranial fossa were considered extremely difficult to access and often inoperable using standard transcranial approaches. (biomedcentral.com)
- With the introduction into the neurosurgical practice of minimally invasive methods utilizing endoscopic techniques, it became possible to effectively remove hard-to-reach tumors, including central tumors of the anterior region of the posterior cranial fossa. (biomedcentral.com)
- From 2008 to the present time, the inpatient institution has operated on 140 patients with various tumors of the base of the skull, localized to the clivus and anterior region of the posterior cranial fossa (65 men and 75 women). (biomedcentral.com)
- The endoscopic endonasal transclival approach can be used to obtain access to the centrally located tumors of the posterior cranial fossa. (biomedcentral.com)
- The extended endoscopic endonasal posterior (transclival) approach, considering its minimally invasive nature, allows fora radical and low-risk (in terms of postoperative complications and lethality) removal of various skull base tumors of central localization with the involvement and without the involvement of the clivus, which, until recently, were considered to be almost inoperable. (biomedcentral.com)
Cavity2
- A. Skull - Cranial fossae of the cranial cavity. (cuny.edu)
- The cranial cavity revealed a good preservation of the menynx (Fig. 2A, riangle) and brain residuals in the posterior cerebral fossa (Fig. 2A, arrow). (paleopatologia.it)
Foramen magnum3
- The posterior inferior cerebellar arteries, the largest branches of the vertebral arteries, can be seen proximal to the foramen magnum. (neurosurgicalatlas.com)
- Chiari-I Malformation (CM-I) is characterized by a shallow posterior fossa and hindbrain herniation through the foramen magnum. (cns.org)
- In the illustration below, used to more clearly define the talking point that the cerebellar tonsils are caudal or inferior to a line drawn from the basion or most anterior (front) point of the foramen magnum to the opisthion or the posterior (back) point of the foramen magnum, known as the basion opisthion line or McRae's line. (caringmedical.com)
Nerve6
- The first cervical nerve, the suboccipital nerve, emerges between the skull and the posterior arch of the first cervical vertebra (atlas). (neurosurgicalatlas.com)
- It surrounded by the posterior cranial fossa, the middle cranial fossa, the canal of the facial nerve, the sigmoid and lateral sinuses, and the petrous tip of the temporal bone. (medscape.com)
- A retrosigmoid craniotomy was performed with total removal and cranial nerve function's preservation. (bmj.com)
- Diseases of the twelfth cranial (hypoglossal) nerve or nuclei. (harvard.edu)
- The nerve may also be injured by diseases of the posterior fossa or skull base. (harvard.edu)
- The post-operative period was uneventful, except that he required tracheostomy because of lower cranial nerve paresis and was discharged under satisfactory conditions after 3 weeks of hospital stay. (neurologyindia.com)
Occipital6
- 2022). Occipital Intradiploic Pseudomeningocele - A Rare Complication of Pediatric Posterior Cranial Fossa Surgery: Case Report and Review of the Literature. (unimib.it)
- Está formado por la superficie superior del tercio posterior del cuerpo del ESFENOIDES, por el occipital, por las porciones petrosa y mastoidea del HUESO TEMPORAL y por el ángulo posteroinferior del HUESO PARIETAL. (bvsalud.org)
- It is formed by the posterior third of the superior surface of the body of the sphenoid ( SPHENOID BONE ), by the occipital, the petrous, and mastoid portions of the TEMPORAL BONE , and the posterior inferior angle of the PARIETAL BONE . (bvsalud.org)
- Occipital encephaloceles present as masses overlying the occiput or posterior neck. (symptoma.com)
- The occipital artery (Figs. 759, 760, 787) arises from the posterior aspect of the external carotid artery, below the posterior belly of the digastric muscle, and terminates, near the medial end of the superior nuchal line of the occipital bone, by dividing into medial and lateral terminal branches. (co.ma)
- The dorsal part of the ring consists of a thin cartilaginous plate, the tectum posterius, from which is developed the only part (i.e. the inferior part of the occipital squama) of the cranial vault preformed in cartilage. (co.ma)
Pituitary1
- On lateral radiographs the sella turcica or pituitary fossa is a radiodense saddle-shaped outline of the fossa extending between the anterior and posterior clinoid processes 1 . (bvsalud.org)
Lateral2
- Twenty-five patients underwent surgery via the middle fossa and 25 via the lateral suboccipital approaches. (elsevier.com)
- Since the introduction of lateral cephalometric radiography by Broadbent4 in 1931, this radiographic technique has been widely used in orthodontics to evaluate cranial and dentofacial growth. (bvsalud.org)
Craniotomy1
- Conclusion: Pediatric patients undergoing posterior cranial fossa craniotomy/craniectomy may postoperatively develop OIP. (unimib.it)
Resection3
- All 23 procedures included duraplasty and resection of the posterior arch of C1. (cns.org)
- This study aimed to elucidate the variations of en bloc resection for advanced EAC‐SCC. (elsevier.com)
- Furthermore, en bloc resection with the temporomandibular joint or glenoid fossa increases the technical difficulty of a surgical procedure because the exposure and manipulation of the petrous segment of the internal carotid artery are limited from the middle cranial fossa. (elsevier.com)
Cerebellum1
- The posterior fossa is a small space in the skull, found near the brainstem and cerebellum. (medlineplus.gov)
Neoplasms2
- Neoplasms of the posterior fossa. (medlineplus.gov)
- The authors describe three patients with prolonged but reversible episodes of severe headaches and focal neurologic deficits developing years after irradiation for cranial neoplasms. (neurology.org)
Decompression3
- It consists in an osteo-dural decompression of the posterior fossa. (centerwatch.com)
- We present a novel technique for minimally invasive decompression of the posterior fossa that provides similar outcomes as the standard PFDC in the surgical treatment of CM-I. Preservation of the posterior tension band and musculature could result in better postoperative pain control, lower incidence of craniocervical instability and better cosmetic results. (cns.org)
- Tx: Posterior fossa decompression and duraplasty. (symptoma.com)
Spinal Canal1
- Current methods of quantifying the severity of CM, such as radiographical measurement of the depth of hindbrain herniation into the spinal canal or measurement of posterior cranial fossa volume do not necessarily correlate to the symptom severity. (asme.org)
Small posterior2
- In approximately two thirds of people, the basilar artery ends by bifurcating into the posterior cerebral arteries, with small posterior communicating arteries connecting to the internal carotid system in the circle of Willis. (medscape.com)
- Historical classification of this malformation consists in four different types, but it is the first one, due to a congenital small posterior fossa, which represent our focus of interest. (centerwatch.com)
Cerebral artery3
- A smooth concentric narrowing was identified in the P2 segment of the left posterior cerebral artery, and branches off this vessel were narrowed with reduced arteriographic blush-all thought to be most consistent with radiation-induced vasculopathy ( figure B ). He has had five such events always with unrevealing evaluations and with complete resolution, sometimes over hours but on one occasion over 3 weeks. (neurology.org)
- The trans-cranial Doppler flow characteristics of the bilateral middle cerebral artery and anterior cerebral artery are described in this report. (neurologyindia.com)
- Herein, we report the trans-cranial Doppler flow characteristics of the bilateral middle cerebral artery (MCA) and anterior cerebral artery (ACA) in a child with PSH. (neurologyindia.com)
Dura1
- Cranial and spinal dura have been cut to demonstrate the underlying arachnoid mater. (neurosurgicalatlas.com)
Anterior-to-posterior2
- Lines dropped through a central anterior-to-posterior axis of each orbit bisect at a 45° angle. (medscape.com)
- The frontal process of the maxillary bone, the lacrimal bone, lamina papyracea of the ethmoid bone, and the lesser wing of the sphenoid make up the medial wall from anterior to posterior. (radiologykey.com)
Brainstem1
- The region of the posterior cranial fossa, including the clivus and the anterior surface of the brainstem, is considered the hardest-to-access region in skull base surgery. (biomedcentral.com)
Cerebrospinal fluid1
- include altered cerebrospinal fluid flow in the posterior cranial fossa, and involvement of the abducens nucleus or infranuclear portion. (reviewofophthalmology.com)
Facial1
- g) The masseteric branch, sometimes represented by several twigs, arises from the posterior aspect of the facial trunk, a short distance above the lower margin of the mandible. (co.ma)
Frontal1
- 1. Anterior cranial fossa - contains frontal cerebral lobes, olfactory bulbs and olfactory tracts. (cuny.edu)
Optic1
- The optic ring averages 6 mm from the posterior ethmoid artery, with a range of 5-11 mm. (medscape.com)
Craniectomy1
- Posterior fossa decompressive craniectomy (PFDC) is the standard treatment for symptomatic patients. (cns.org)
Chiari3
- 1. Nishikawa M, Sakamoto H, Hakuba A, Nakanishi N, Inoue Y. Pathogenesis of the Chiari malformation: a morphometric study of the posterior cranial fossa. (cns.org)
- A third group, heavily represented by Chiari malformation, was associated with cranial surgery. (medscape.com)
- Type I Chiari malformation (CM) is a complex disorder of the craniospinal system characterized by underdevelopment of the posterior cranial fossa and overcrowding of the normally developed hindbrain [1], and may be a precursor to more severe secondary disorders such as syringomyelia and hydrocephalus. (asme.org)
Tomography3
- Computed brain tomography showed a posterior fossa cyst with obstructive hydrocephalus. (who.int)
- Although a large flow void in the left middle cranial fossa was present, postnatal computed tomography angiography ultimately revealed a high-flow dAVF communicating with the left transverse sinus. (thejns.org)
- His neurologic symptoms persisted, and he was hospitalized after cranial computed tomography (CT) showed a 6-cm, heterogeneous, centrally necrotic mass in the corpus callosum. (cdc.gov)
Surgery4
- However, the scores of one computerized test battery and serial seven- word learning tests decreased significantly 1 month after surgery and recovered within 3 months, in- dicating temporary deterioration of short-term memory in the middle fossa group. (elsevier.com)
- Adjunctive use of endoscopy during posterior fossa surgery to treat cranial neuropathies. (nih.gov)
- Significant PCs were included as independent variables in multivariable logistic regression models designed to test associations with three primary outcomes: cervical spine surgery, thoracolumbar/sacral spine surgery, and cranial surgery. (medscape.com)
- iatrogenic , related to nasal (e.g. functional endoscopic sinus surgery [FESS], endoscopic sinus surgery [ESS]) ( Fig.1 ), or cranial surgery (e.g. craniotomies), which are further divided into accidental and imperfect reconstruction. (actaitalica.it)
Lesion1
- Cystic lesion of posterior cranial fossa: is it Dandy-Walker? (semanticscholar.org)
Cerebellar1
- The posterior inferior cerebellar artery branches from the vertebral artery, while the anterior inferior cerebellar artery and the superior cerebellar artery branch from the basilar artery. (medscape.com)
Bones2
- How many bones make up the cranial bones and what are their functions? (freezingblue.com)
- The frequency is higher in males between their thirties and fifties and are quite rare in childhood due to elasticity of cranial bones 6 . (actaitalica.it)
Neck2
- Furthermore, they should understand the anatomical and biomechanical implications of preserving the posterior tension band and neck musculature. (cns.org)
- [ 1 , 2 ] The clinical triad of a short neck, low posterior hairline, and limited neck range of motion first described by Klippel and Feil in 1912 [ 3 ] was originally thought to be the hallmark presentation of this condition. (medscape.com)
Orbit1
- The anterior and posterior ethmoid foramina lie in the medial wall of the orbit along the frontoethmoidal suture line. (medscape.com)
Ethmoid2
- The anterior and posterior ethmoid arteries pass through these foramina and are important surgical landmarks. (medscape.com)
- The distance between the anterior and posterior ethmoid arteries averages 12 mm, with a range of 8-19 mm. (medscape.com)
Branch1
- h) The buccal is an inconstant branch which, when present, arises from the posterior aspect of the external maxillary artery above the masseteric branch. (co.ma)
Arteries3
- Even complete occlusion of a large artery may not result in death because of anastomotic retrograde flow via the circle of Willis and posterior communicating arteries. (medscape.com)
- Longitudinally directed posterior spinal arteries supply the posterior one-third of the spinal cord (the anterior spinal artery supplies the anterior two-thirds). (neurosurgicalatlas.com)
- The arteries mark the level of the cribriform plate and the relationship of the anterior cranial fossa to the orbits. (medscape.com)
Approaches1
- Upper, middle, and lower transclival approaches provide access to the anterior surface of the upper, middle, and lower neurovascular complexes of the posterior cranial fossa. (biomedcentral.com)
Postoperative1
- The middle fossa approach and operation time showed correlations with the postoperative neu- ropsychological declines. (elsevier.com)