Cavernous Sinus: An irregularly shaped venous space in the dura mater at either side of the sphenoid bone.Cavernous Sinus Thrombosis: Formation or presence of a blood clot (THROMBUS) in the CAVERNOUS SINUS of the brain. Infections of the paranasal sinuses and adjacent structures, CRANIOCEREBRAL TRAUMA, and THROMBOPHILIA are associated conditions. Clinical manifestations include dysfunction of cranial nerves III, IV, V, and VI, marked periorbital swelling, chemosis, fever, and visual loss. (From Adams et al., Principles of Neurology, 6th ed, p711)Sphenoid Sinus: One of the paired air spaces located in the body of the SPHENOID BONE behind the ETHMOID BONE in the middle of the skull. Sphenoid sinus communicates with the posterosuperior part of NASAL CAVITY on the same side.Cranial Sinuses: 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).Abducens Nerve Diseases: Diseases of the sixth cranial (abducens) nerve or its nucleus in the pons. The nerve may be injured along its course in the pons, intracranially as it travels along the base of the brain, in the cavernous sinus, or at the level of superior orbital fissure or orbit. Dysfunction of the nerve causes lateral rectus muscle weakness, resulting in horizontal diplopia that is maximal when the affected eye is abducted and ESOTROPIA. Common conditions associated with nerve injury include INTRACRANIAL HYPERTENSION; CRANIOCEREBRAL TRAUMA; ISCHEMIA; and INFRATENTORIAL NEOPLASMS.Carotid-Cavernous Sinus Fistula: An acquired or spontaneous abnormality in which there is communication between CAVERNOUS SINUS, a venous structure, and the CAROTID ARTERIES. It is often associated with HEAD TRAUMA, specifically basilar skull fractures (SKULL FRACTURE, BASILAR). Clinical signs often include VISION DISORDERS and INTRACRANIAL HYPERTENSION.Central Nervous System Vascular Malformations: Congenital, inherited, or acquired abnormalities involving ARTERIES; VEINS; or venous sinuses in the BRAIN; SPINAL CORD; and MENINGES.Cranial Nerves: Twelve pairs of nerves that carry general afferent, visceral afferent, special afferent, somatic efferent, and autonomic efferent fibers.Ophthalmoplegia: Paralysis of one or more of the ocular muscles due to disorders of the eye muscles, neuromuscular junction, supporting soft tissue, tendons, or innervation to the muscles.Sinus Thrombosis, Intracranial: Formation or presence of a blood clot (THROMBUS) in the CRANIAL SINUSES, large endothelium-lined venous channels situated within the SKULL. Intracranial sinuses, also called cranial venous sinuses, include the superior sagittal, cavernous, lateral, petrous sinuses, and many others. Cranial sinus thrombosis can lead to severe HEADACHE; SEIZURE; and other neurological defects.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.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).Dura Mater: The outermost of the three MENINGES, a fibrous membrane of connective tissue that covers the brain and the spinal cord.Cerebral Veins: Veins draining the cerebrum.Maxillary Sinus: The air space located in the body of the MAXILLARY BONE near each cheek. Each maxillary sinus communicates with the middle passage (meatus) of the NASAL CAVITY on the same side.Sella Turcica: A bony prominence situated on the upper surface of the body of the sphenoid bone. It houses the PITUITARY GLAND.Oculomotor Nerve Diseases: Diseases of the oculomotor nerve or nucleus that result in weakness or paralysis of the superior rectus, inferior rectus, medial rectus, inferior oblique, or levator palpebrae muscles, or impaired parasympathetic innervation to the pupil. With a complete oculomotor palsy, the eyelid will be paralyzed, the eye will be in an abducted and inferior position, and the pupil will be markedly dilated. Commonly associated conditions include neoplasms, CRANIOCEREBRAL TRAUMA, ischemia (especially in association with DIABETES MELLITUS), and aneurysmal compression. (From Adams et al., Principles of Neurology, 6th ed, p270)Paranasal Sinuses: Air-filled spaces located within the bones around the NASAL CAVITY. They are extensions of the nasal cavity and lined by the ciliated NASAL MUCOSA. Each sinus is named for the cranial bone in which it is located, such as the ETHMOID SINUS; the FRONTAL SINUS; the MAXILLARY SINUS; and the SPHENOID SINUS.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.Sinus of Valsalva: The dilatation of the aortic wall behind each of the cusps of the aortic valve.Paranasal Sinus Neoplasms: Tumors or cancer of the PARANASAL SINUSES.Embolization, Therapeutic: A method of hemostasis utilizing various agents such as Gelfoam, silastic, metal, glass, or plastic pellets, autologous clot, fat, and muscle as emboli. It has been used in the treatment of spinal cord and INTRACRANIAL ARTERIOVENOUS MALFORMATIONS, renal arteriovenous fistulas, gastrointestinal bleeding, epistaxis, hypersplenism, certain highly vascular tumors, traumatic rupture of blood vessels, and control of operative hemorrhage.Carotid Sinus: The dilated portion of the common carotid artery at its bifurcation into external and internal carotids. It contains baroreceptors which, when stimulated, cause slowing of the heart, vasodilatation, and a fall in blood pressure.Skull Base Neoplasms: Neoplasms of the base of the skull specifically, differentiated from neoplasms of unspecified sites or bones of the skull (SKULL NEOPLASMS).Cerebral Angiography: Radiography of the vascular system of the brain after injection of a contrast medium.Pituitary Neoplasms: Neoplasms which arise from or metastasize to the PITUITARY GLAND. The majority of pituitary neoplasms are adenomas, which are divided into non-secreting and secreting forms. Hormone producing forms are further classified by the type of hormone they secrete. Pituitary adenomas may also be characterized by their staining properties (see ADENOMA, BASOPHIL; ADENOMA, ACIDOPHIL; and ADENOMA, CHROMOPHOBE). Pituitary tumors may compress adjacent structures, including the HYPOTHALAMUS, several CRANIAL NERVES, and the OPTIC CHIASM. Chiasmal compression may result in bitemporal HEMIANOPSIA.Neurosurgical Procedures: Surgery performed on the nervous system or its parts.Frontal Sinus: One of the paired, but seldom symmetrical, air spaces located between the inner and outer compact layers of the FRONTAL BONE in the forehead.Paranasal Sinus Diseases: Diseases affecting or involving the PARANASAL SINUSES and generally manifesting as inflammation, abscesses, cysts, or tumors.Maxillary Sinus Neoplasms: Tumors or cancer of the MAXILLARY SINUS. They represent the majority of paranasal neoplasms.Exophthalmos: Abnormal protrusion of both eyes; may be caused by endocrine gland malfunction, malignancy, injury, or paralysis of the extrinsic muscles of the eye.Cranial Nerve Diseases: Disorders of one or more of the twelve cranial nerves. With the exception of the optic and olfactory nerves, this includes disorders of the brain stem nuclei from which the cranial nerves originate or terminate.Carotid Artery, Internal: Branch of the common carotid artery which supplies the anterior part of the brain, the eye and its appendages, the forehead and nose.Trochlear Nerve: The 4th cranial nerve. The trochlear nerve carries the motor innervation of the superior oblique muscles of the eye.Hemangioma, Cavernous, Central Nervous System: A vascular anomaly composed of a collection of large, thin walled tortuous VEINS that can occur in any part of the central nervous system but lack intervening nervous tissue. Familial occurrence is common and has been associated with a number of genes mapped to 7q, 7p and 3q. Clinical features include SEIZURES; HEADACHE; STROKE; and progressive neurological deficit.Coronary Sinus: A short vein that collects about two thirds of the venous blood from the MYOCARDIUM and drains into the RIGHT ATRIUM. Coronary sinus, normally located between the LEFT ATRIUM and LEFT VENTRICLE on the posterior surface of the heart, can serve as an anatomical reference for cardiac procedures.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.Meningeal Arteries: Arteries which supply the dura mater.Orbit: Bony cavity that holds the eyeball and its associated tissues and appendages.Magnetic Resonance Imaging: Non-invasive method of demonstrating internal anatomy based on the principle that atomic nuclei in a strong magnetic field absorb pulses of radiofrequency energy and emit them as radiowaves which can be reconstructed into computerized images. The concept includes proton spin tomographic techniques.Orbital Diseases: Diseases of the bony orbit and contents except the eyeball.Skull Base: The inferior region of the skull consisting of an internal (cerebral), and an external (basilar) surface.Central Nervous System Cysts: Congenital or acquired cysts of the brain, spinal cord, or meninges which may remain stable in size or undergo progressive enlargement.Hemangioma, Cavernous: A vascular anomaly that is a collection of tortuous BLOOD VESSELS and connective tissue. This tumor-like mass with the large vascular space is filled with blood and usually appears as a strawberry-like lesion in the subcutaneous areas of the face, extremities, or other regions of the body including the central nervous system.Horner Syndrome: A syndrome associated with defective sympathetic innervation to one side of the face, including the eye. Clinical features include MIOSIS; mild BLEPHAROPTOSIS; and hemifacial ANHIDROSIS (decreased sweating)(see HYPOHIDROSIS). Lesions of the BRAIN STEM; cervical SPINAL CORD; first thoracic nerve root; apex of the LUNG; CAROTID ARTERY; CAVERNOUS SINUS; and apex of the ORBIT may cause this condition. (From Miller et al., Clinical Neuro-Ophthalmology, 4th ed, pp500-11)Petrous Bone: 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.Sphenoid Sinusitis: Inflammation of the NASAL MUCOSA in the SPHENOID SINUS. Isolated sphenoid sinusitis is uncommon. It usually occurs in conjunction with other paranasal sinusitis.Diplopia: A visual symptom in which a single object is perceived by the visual cortex as two objects rather than one. Disorders associated with this condition include REFRACTIVE ERRORS; STRABISMUS; OCULOMOTOR NERVE DISEASES; TROCHLEAR NERVE DISEASES; ABDUCENS NERVE DISEASES; and diseases of the BRAIN STEM and OCCIPITAL LOBE.Cranial Nerve Neoplasms: Benign and malignant neoplasms that arise from one or more of the twelve cranial nerves.Abducens Nerve: The 6th cranial nerve which originates in the ABDUCENS NUCLEUS of the PONS and sends motor fibers to the lateral rectus muscles of the EYE. Damage to the nerve or its nucleus disrupts horizontal eye movement control.Sick Sinus Syndrome: A condition caused by dysfunctions related to the SINOATRIAL NODE including impulse generation (CARDIAC SINUS ARREST) and impulse conduction (SINOATRIAL EXIT BLOCK). It is characterized by persistent BRADYCARDIA, chronic ATRIAL FIBRILLATION, and failure to resume sinus rhythm following CARDIOVERSION. This syndrome can be congenital or acquired, particularly after surgical correction for heart defects.Ethmoid Sinus: The numerous (6-12) small thin-walled spaces or air cells in the ETHMOID BONE located between the eyes. These air cells form an ethmoidal labyrinth.Meningioma: A relatively common neoplasm of the CENTRAL NERVOUS SYSTEM that arises from arachnoidal cells. The majority are well differentiated vascular tumors which grow slowly and have a low potential to be invasive, although malignant subtypes occur. Meningiomas have a predilection to arise from the parasagittal region, cerebral convexity, sphenoidal ridge, olfactory groove, and SPINAL CANAL. (From DeVita et al., Cancer: Principles and Practice of Oncology, 5th ed, pp2056-7)Oculomotor Nerve: The 3d cranial nerve. The oculomotor nerve sends motor fibers to the levator muscles of the eyelid and to the superior rectus, inferior rectus, and inferior oblique muscles of the eye. It also sends parasympathetic efferents (via the ciliary ganglion) to the muscles controlling pupillary constriction and accommodation. The motor fibers originate in the oculomotor nuclei of the midbrain.Tomography, X-Ray Computed: Tomography using x-ray transmission and a computer algorithm to reconstruct the image.Tolosa-Hunt Syndrome: An idiopathic syndrome characterized by the formation of granulation tissue in the anterior cavernous sinus or superior orbital fissure, producing a painful ophthalmoplegia. (Adams et al., Principles of Neurology, 6th ed, p271)Microsurgery: The performance of surgical procedures with the aid of a microscope.Meningeal Neoplasms: Benign and malignant neoplastic processes that arise from or secondarily involve the meningeal coverings of the brain and spinal cord.Endoscopy: Procedures of applying ENDOSCOPES for disease diagnosis and treatment. Endoscopy involves passing an optical instrument through a small incision in the skin i.e., percutaneous; or through a natural orifice and along natural body pathways such as the digestive tract; and/or through an incision in the wall of a tubular structure or organ, i.e. transluminal, to examine or perform surgery on the interior parts of the body.Streptococcus constellatus: A species of gram-positive bacteria in the STREPTOCOCCUS MILLERI GROUP. It is commonly found in the oropharnyx flora and has a proclivity for abscess formation in the upper body and respiratory tract.Vascular Neoplasms: Neoplasms located in the vasculature system, such as ARTERIES and VEINS. They are differentiated from neoplasms of vascular tissue (NEOPLASMS, VASCULAR TISSUE), such as ANGIOFIBROMA or HEMANGIOMA.Craniotomy: Any operation on the cranium or incision into the cranium. (Dorland, 28th ed)Neuronavigation: Intraoperative computer-assisted 3D navigation and guidance system generally used in neurosurgery for tracking surgical tools and localize them with respect to the patient's 3D anatomy. The pre-operative diagnostic scan is used as a reference and is transferred onto the operative field during surgery.PolyvinylsAdenoma: A benign epithelial tumor with a glandular organization.Skull Neoplasms: Neoplasms of the bony part of the skull.Otorhinolaryngologic Surgical Procedures: 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.Intracranial Arteriovenous Malformations: Congenital vascular anomalies in the brain characterized by direct communication between an artery and a vein without passing through the CAPILLARIES. The locations and size of the shunts determine the symptoms including HEADACHES; SEIZURES; STROKE; INTRACRANIAL HEMORRHAGES; mass effect; and vascular steal effect.Orbital Neoplasms: Neoplasms of the bony orbit and contents except the eyeball.Tachycardia, Sinus: Simple rapid heartbeats caused by rapid discharge of impulses from the SINOATRIAL NODE, usually between 100 and 180 beats/min in adults. It is characterized by a gradual onset and termination. Sinus tachycardia is common in infants, young children, and adults during strenuous physical activities.Anatomy, Veterinary: The study of the anatomical structures of animals.Growth Hormone-Secreting Pituitary Adenoma: A pituitary tumor that secretes GROWTH HORMONE. In humans, excess HUMAN GROWTH HORMONE leads to ACROMEGALY.Intracranial Aneurysm: Abnormal outpouching in the wall of intracranial blood vessels. Most common are the saccular (berry) aneurysms located at branch points in CIRCLE OF WILLIS at the base of the brain. Vessel rupture results in SUBARACHNOID HEMORRHAGE or INTRACRANIAL HEMORRHAGES. Giant aneurysms (>2.5 cm in diameter) may compress adjacent structures, including the OCULOMOTOR NERVE. (From Adams et al., Principles of Neurology, 6th ed, p841)Chordoma: A malignant tumor arising from the embryonic remains of the notochord. It is also called chordocarcinoma, chordoepithelioma, and notochordoma. (Dorland, 27th ed)Maxillary Nerve: The intermediate sensory division of the trigeminal (5th cranial) nerve. The maxillary nerve carries general afferents from the intermediate region of the face including the lower eyelid, nose and upper lip, the maxillary teeth, and parts of the dura.Pituitary Apoplexy: The sudden loss of blood supply to the PITUITARY GLAND, leading to tissue NECROSIS and loss of function (PANHYPOPITUITARISM). The most common cause is hemorrhage or INFARCTION of a PITUITARY ADENOMA. It can also result from acute hemorrhage into SELLA TURCICA due to HEAD TRAUMA; INTRACRANIAL HYPERTENSION; or other acute effects of central nervous system hemorrhage. Clinical signs include severe HEADACHE; HYPOTENSION; bilateral visual disturbances; UNCONSCIOUSNESS; and COMA.Prolactinoma: A pituitary adenoma which secretes PROLACTIN, leading to HYPERPROLACTINEMIA. Clinical manifestations include AMENORRHEA; GALACTORRHEA; IMPOTENCE; HEADACHE; visual disturbances; and CEREBROSPINAL FLUID RHINORRHEA.Carotid Artery Diseases: Pathological conditions involving the CAROTID ARTERIES, including the common, internal, and external carotid arteries. ATHEROSCLEROSIS and TRAUMA are relatively frequent causes of carotid artery pathology.Putaminal Hemorrhage: Intracranial bleeding into the PUTAMEN, a BASAL GANGLIA nucleus. This is associated with HYPERTENSION and lipohyalinosis of small blood vessels in the putamen. Clinical manifestations vary with the size of hemorrhage, but include HEMIPARESIS; HEADACHE; and alterations of consciousness.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.Pituitary Diseases: Disorders involving either the ADENOHYPOPHYSIS or the NEUROHYPOPHYSIS. These diseases usually manifest as hypersecretion or hyposecretion of PITUITARY HORMONES. Neoplastic pituitary masses can also cause compression of the OPTIC CHIASM and other adjacent structures.Dissection: The separation and isolation of tissues for surgical purposes, or for the analysis or study of their structures.Eye Manifestations: Ocular disorders attendant upon non-ocular disease or injury.Orbital Pseudotumor: A nonspecific tumor-like inflammatory lesion in the ORBIT of the eye. It is usually composed of mature LYMPHOCYTES; PLASMA CELLS; MACROPHAGES; LEUKOCYTES with varying degrees of FIBROSIS. Orbital pseudotumors are often associated with inflammation of the extraocular muscles (ORBITAL MYOSITIS) or inflammation of the lacrimal glands (DACRYOADENITIS).Angiography, Digital Subtraction: A method of delineating blood vessels by subtracting a tissue background image from an image of tissue plus intravascular contrast material that attenuates the X-ray photons. The background image is determined from a digitized image taken a few moments before injection of the contrast material. The resulting angiogram is a high-contrast image of the vessel. This subtraction technique allows extraction of a high-intensity signal from the superimposed background information. The image is thus the result of the differential absorption of X-rays by different tissues.Radiosurgery: A radiological stereotactic technique developed for cutting or destroying tissue by high doses of radiation in place of surgical incisions. It was originally developed for neurosurgery on structures in the brain and its use gradually spread to radiation surgery on extracranial structures as well. The usual rigid needles or probes of stereotactic surgery are replaced with beams of ionizing radiation directed toward a target so as to achieve local tissue destruction.Lemierre Syndrome: A superinfection of the damaged oropharyngeal mucosa by FUSOBACTERIUM NECROPHORUM leading to the secondary septic THROMBOPHLEBITIS of the internal jugular vein.Ophthalmic Nerve: A sensory branch of the trigeminal (5th cranial) nerve. The ophthalmic nerve carries general afferents from the superficial division of the face including the eyeball, conjunctiva, upper eyelid, upper nose, nasal mucosa, and scalp.

Color Doppler study of the venous circulation in the fetal brain and hemodynamic study of the cerebral transverse sinus. (1/285)

OBJECTIVES: To describe the venous circulation in the fetal brain; to describe the normal blood flow velocity waveform in the transverse sinus and to establish normal reference ranges for the second half of gestation. POPULATION: A total of 126 pregnant women with uncomplicated pregnancies at 20-42 weeks of gestation. METHODS: A combination of color-coded Doppler and two-dimensional real-time ultrasound was used to identify the main venous systems in the fetal brain. Blood flow velocity waveforms of the transverse sinus were obtained from a transverse plane of the head at the level of the cerebellum. RESULTS: A waveform could be obtained in the cerebral transverse sinus in 98% of the cases. The waveform obtained was triphasic with a forward systolic component, a forward early diastolic component and a lower forward component in late diastole. Reverse flow during atrial contraction was seen before 28 weeks and the diastolic flow increased with gestation thereafter. Pulsatility and resistance indices decreased and flow velocities increased in the transverse sinus throughout gestation. CONCLUSION: The venous circulation of the fetal brain can be identified by color Doppler. The gestational age-related decrease in resistance and increase in flow velocities suggest that hemodynamic studies of the cerebral transverse sinus might have clinical implications in studying compromised fetuses.  (+info)

Long-term outcome of surgical treatment of intracavernous giant aneurysms. (2/285)

A number of approaches have been proposed for the treatment of intracavernous giant aneurysms. In the present study, we have analyzed long-term surgical outcome of 27 consecutive cases of our experience. All the cases were unruptured and symptomatic, showing symptoms such as extraocular movement disorder or visual disturbances. Thirteen cases were male and 14 cases were female. The age of the patients ranged between 11 and 75 years (average 52.2 years) and follow-up periods were between 1 and 20 years (average 7.7 years). Abducens nerve was distributed in 20 cases, oculomotor nerve in 12 cases, optic nerve in six cases, trigeminal nerve in six cases, and trochlear nerve in five cases. In addition to conventional angiography, three-dimensional computed tomographic angiography, balloon test occlusion (BTO), slow injection angiography, aneurysmography, and single photon emission computed tomography with BTO were used to determine a method of treatment. Therapeutic modalities of the present series were as follows: four cases were unoperated, common carotid artery ligation was performed in eight cases, internal carotid artery (IC) ligation in three cases, IC ligation plus superficial temporal artery (STA)--middle cerebral artery (MCA) anastomosis in four cases, IC ligation plus high flow vein bypass in three cases, IC trapping plus STA-MCA anastomosis in three cases, and direct clipping in two cases. Although two cases showed early and late ischemic complications, other cases demonstrated improvement of cranial nerve dysfunction relatively soon after surgical treatment and long-term outcome was generally good. It is concluded that good long-term surgical outcome is obtained for intracavernous giant aneurysms by selecting adequate surgical treatment based upon careful preoperative evaluation of these aneurysms using sophisticated diagnostic methods.  (+info)

Multiple dural arteriovenous shunts in a 5-year-old boy. (3/285)

We describe a rare case of multiple dural arteriovenous shunts (DAVSs) in a 5-year-old boy. MR imaging performed at 1 year of age showed only a dilated anterior part of the superior sagittal sinus; however, angiography at 5 years of age revealed an infantile-type DAVS there and two other DAVSs of the adult type. The pathophysiological evolution of DAVSs in children and their treatment strategies are discussed.  (+info)

Stereotactic radiosurgery for cavernous sinus cavernous hemangioma--case report. (4/285)

A 40-year-old female presented with cavernous sinus cavernous hemangioma manifesting as left abducens and trigeminal nerve pareses. Magnetic resonance imaging revealed a left cavernous sinus tumor. The tumor was partially removed. Histological examination of the specimen confirmed cavernous hemangioma. Radiosurgery was performed using the gamma knife. The tumor markedly decreased in size after radiosurgery and morbidity was avoided. Cavernous sinus cavernous hemangiomas may be difficult to treat surgically due to intraoperative bleeding and cranial nerve injury. Stereotactic radiosurgery can be used either as an adjunct treatment to craniotomy, or as the primary treatment for small cavernous sinus cavernous hemangioma.  (+info)

Cavernous aneurysm rupture with balloon occlusion of a direct carotid cavernous fistula: postmortem examination. (5/285)

We present a unique case of a patient with a symptomatic carotid cavernous fistula treated successfully with balloon embolization. Her subsequent death from other disease processes allowed direct visualization of the balloon occlusion in situ at postmortem examination.  (+info)

Dural arteriovenous fistula of the cavernous sinus with venous congestion of the brain stem: report of two cases. (6/285)

We present two cases of dural arteriovenous fistula of the cavernous sinus with venous congestion of the brain stem. Both cases were detected by MR imaging and showed significant improvement on MR images after transvenous embolization.  (+info)

Ki-67 labelling index and invasiveness among anterior pituitary adenomas: analysis of 103 cases using the MIB-1 monoclonal antibody. (7/285)

AIMS: To investigate the relation between proliferative activity of anterior pituitary adenomas, quantified by the Ki-67 labelling index, and their invasive behaviour. METHODS: Expression of Ki-67 was evaluated in 103 anterior pituitary adenomas consecutively operated on in a 36 month period and correlated with surgical evidence of invasiveness. RESULTS: Non-invasive (n = 65) and invasive (n = 38) adenomas were identified from surgically verified infiltration of sellar floor dura and bone. The wall of the cavernous sinus was infiltrated in 16 cases. Forty one adenomas were non-functioning and 62 functioning (24 prolactin, 21 growth hormone, 10 ACTH, seven mixed). The overall mean (SD) Ki-67 labelling index was 2.64 (3.69) per cent (median 1.5). The mean index was 3.08 (4.59) per cent in functioning and 1.97 (1.78) per cent in non-functioning tumours; 5.47 (9.52) per cent in ACTH adenomas and 2.33 (2.42) per cent in others (p = 0.01); 3.71 (5.17) per cent in invasive and 2.01 (2.45) per cent in non-invasive adenomas (p = 0.027); and 5.58 (7.24) per cent in cavernous sinus infiltrating v 2.10 (2.39) per cent in cavernous sinus non-infiltrating adenomas (p = 0.0005). To identify a value of labelling index beyond which adenomas should be considered invasive and another beyond which cavernous sinus infiltration should be suspected, normality Q-Q plots were obtained: a threshold labelling index of 3.5% for invasive adenomas and of 5% for cavernous sinus infiltrating adenomas was defined, with statistically significant differences (p = 0.02 and p = 0.004, respectively). CONCLUSIONS: The Ki-67 labelling index can be considered a useful marker in determining the invasive behaviour of anterior pituitary adenomas.  (+info)

Simultaneous subarachnoid hemorrhage and carotid cavernous fistula after rupture of a paraclinoid aneurysm during balloon-assisted coil embolization. (8/285)

We describe an iatrogenic perforation of a paraclinoid aneurysm during balloon-assisted coil embolization that resulted in simultaneous subarachnoid contrast extravasation and a carotid cavernous fistula. The causative factors specifically related to the balloon-assisted method that led to aneurysm rupture are discussed as well as strategies for dealing with this complication.  (+info)

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Radiotherapy is an emerging treatment for hemangioma of the cavernous sinus because of its efficacy and safety in comparison with surgery. Recently, SRS showed favorable treatment results in patients with hemangioma of the cavernous sinus [12-14,18]. However, when performing radiosurgery on tumors located near the optic apparatus, radiation oncologists should be concerned about toxicities, especially those like radiation-induced optic neuropathy (RION). According to previous studies, the risk of radiation-related sequelae (for example, cranial nerve palsies) might be higher if the beneficial effects of fractionation are not used [10,19]. The risk of RION is the primary limitation of single-fraction SRS for many patients with parasellar lesions, such as cavernous sinus hemangioma. As part of the Quantitative Analysis of Normal Tissue Effects in the Clinic (QUANTEC) initiative, Mayo et al. [20] reviewed the available literature to determine the dose-volume relationship of RION. For single-fraction ...
We report a 12-year-old boy who presented with incomplete right ophthalmoplegia, exophthalmos and headache. Initial CT and MRI revealed a mass in the right cavernous sinus. During tumour work-up, CT i
Tolosa-Hunt Syndrome: Refers to a cavernous-sinus syndrome caused by an idiopathic inflammatory lesion, an abnormal autoimmune response, or tumors/metastases in the area of the cavernous sinus. Symptoms most commonly occur at the beginning of the fifth decade of life and include chronic and severe (often unilateral) headache often preceding ophthalmoplegia. Mild fever, double vision, exophthalmos, ptosis, vertigo, chronic fatigue, and arthralgia may occur. Steroids have been used successfully; however, spontaneous remission is common (except when caused by tumors/ metastases), as is recurrence. No sexual predilection has been reported. ...
The mass involves the left cavernous sinus, surrounds the carotid, and extends forward to the orbital apex, and backward to the tentorium and clivus.
The mass involves the left cavernous sinus, surrounds the carotid, and extends forward to the orbital apex, and backward to the tentorium and clivus.
The intercavernous sinuses (latin: sinus intercavernous) are dural venous sinuses that connect the right and left cavernous sinuses.
It is not always possible to tell if there is cavernous sinus invasion, but there are three signs to look out for: -Is there more than 50% encirclement of the carotid artery? Note: meningiomas tend to constrict the carotid artery, macroadenomas do not. -Is there lateral displacement of the lateral wall of the cavernous sinus compared to the opposite side? -Is there an increased amount of tissue interposed between the carotid artery and the lateral wall of the cavernous sinus? ...
Objectives: Upon completion of this conference the resident/student should be able to:. Describe the syndromes associated with cavernous sinus including:. ...
The illustration presents the cranial nerves within the cavernous sinus, their relationship to the pituitary gland, vascular structures and dural boundaries through both lateral view and coronal section. The trajectory change of the cranial nerve IV before going through the superior fissure was specifically addressed, which was oftentimes overlooked. Using DICOM data enables more accurate visualization of the sagittal cut of the sphenoid bone at the superior fissure, where harbors the complexity of vascular and neural structures. An overview of the skull with brain, cavernous sinus and internal carotid artery layered in, is also portrayed for orientation purposes. ...
Of all pituitary adenomas, 6%-10% involve the cavernous sinus and are considered to be invasive. The clinical signs occur late. Cavernous sinus invasion increases the morbidity and mortality associated with surgical procedures. During MR imaging, the absence of invasion can be assumed if a venous compartment is visible between the tumour and the intracavernous internal cerebral artery (ICA).The content of the cavernous sinus is isointense and is interspersed with small foci of an increased signal intensity which correspond to a slow blood flow or the presence of fat; the ICA is easly identifiable because of its characteristic thin walls surrounding a lumen of a low signal intensity, which is reflective of a high-velocity flow void. After adminstration of a gadolinium contrast, the venous compartments are enhanced strongly, and, thus, the depiction of these structures becomes easy. On the other hand, total encasement of the intracavernous ICA is a very specific sign. Alternative criteria have to ...
Aneurysms arising from the intracavernous portion of the internal carotid artery very rarely rupture. A patient is presented in whom rupture of an aneurysm wholly within the cavernous sinus caused a subarachnoid hemorrhage. The aneurysm was successfu
... Nancy Huynh Ophthalmic Medical Technology UAMS, College of Health Professions Little Rock, AR Case Report A 48 year-old white... ...
Question - Have high BP, hypothyroid, aravhnoid cyst with small meningioma at the cavernous sinus. Is it safe to conceive?. Ask a Doctor about diagnosis, treatment and medication for Hypertension, Ask a General & Family Physician
The use of intravenous radio isotope angiography in 3 cases of unilateral carotid cavernous sinus fistula is described. The lesion gives a characteristic image pattern distinguishable from that of arteriovenous malformation ...
The granulation pattern of somatotroph adenomas is well known to be associated with differing clinical and biochemical characteristics, and it has been shown that sparsely granulated tumours respond poorly to commonly used somatostatin receptor ligands (SRLs). We report a challenging case of acromegaly with a sparsely granulated tumour resistant to multiple modalities of treatment, ultimately achieving biochemical control with pasireotide. A 26-year-old lady presented with classical features of acromegaly, which was confirmed by an oral glucose tolerance test. Insulin-like growth factor 1 (IGF1) was 1710 µg/L (103-310 µg/L) and mean growth hormone (GH) was ,600 U/L. MRI scan showed a 4 cm pituitary macroadenoma with suprasellar extension and right-sided cavernous sinus invasion. She underwent trans-sphenoidal pituitary surgery. Histology displayed moderate amounts of sparsely granular eosinophilic cytoplasm, staining only for GH. Postoperative investigations showed uncontrolled disease ...
The granulation pattern of somatotroph adenomas is well known to be associated with differing clinical and biochemical characteristics, and it has been shown that sparsely granulated tumours respond poorly to commonly used somatostatin receptor ligands (SRLs). We report a challenging case of acromegaly with a sparsely granulated tumour resistant to multiple modalities of treatment, ultimately achieving biochemical control with pasireotide. A 26-year-old lady presented with classical features of acromegaly, which was confirmed by an oral glucose tolerance test. Insulin-like growth factor 1 (IGF1) was 1710 µg/L (103-310 µg/L) and mean growth hormone (GH) was ,600 U/L. MRI scan showed a 4 cm pituitary macroadenoma with suprasellar extension and right-sided cavernous sinus invasion. She underwent trans-sphenoidal pituitary surgery. Histology displayed moderate amounts of sparsely granular eosinophilic cytoplasm, staining only for GH. Postoperative investigations showed uncontrolled disease ...
A 67-year-old woman was admitted for retro-orbital and periorbital pain, increasing over 1 week and accompanied by progressive exophthalmia and palpebral ptosis on the left side. She was being treated for lung cancer metastasized to the liver and cerebellum. Physical examination revealed a complete ptosis of the left eyelid and complete absence of extraocular movements of the left eye, referable to the third, fourth and sixth cranial nerve. Head computed tomography (CT) showed mucous thickening of the left sphenoid and maxillary sinuses. Brain MRI revealed an expansive lesion involving the left cavernous sinus (Figure 1), which proved to be a new occurrence by comparison with a contrast-enhanced CT performed several weeks earlier. The lesion in the cavernous sinus appeared to be inseparable from T2-hypointense changes in the posterior part of the left sphenoid sinus (Figure 2a,b), whereas the remaining wall thickening of the ethmoidal, sphenoid and maxillary sinuses appeared to be smooth and ...
MRI studies revealed a mass in the perisella region which extended into the sella eroding the posterior sella floor. The mass extended from the superior orbital fissue to the tentorial margin and involved the optic chiasm and extended laterally to involve the right cavernous sinus, surrounding the right internal carotid artery ...
The world sinus literally means narrow passage. But in common medical knowledge of people it means the sinus cavities present in the facial region or some kind
To our knowledge, asymmetry of pituitary enhancement on dynamic MR images has not been mentioned as a feature of cavernous sinus AVF in the previous literature. No abnormality was detected on the routine (nondynamic) pre- and postcontrast MR images, other than a decrease in size after successful therapy. No pituitary dysfunction was noted, probably because of the localized venous congestion in the pituitary gland. The finding of delayed enhancement itself may not have clinical importance, as no pituitary dysfunction was noted. However, neuroradiologists and interventional neuroradiologists should be aware of this phenomenon in patients with a dural AVF in the cavernous sinus. Although we are aware of no report regarding pituitary dysfunction caused by the venous congestion, long-term exposure to the congestion or acute progression of the congestion could theoretically cause a functional disorder or hemorrhage of the pituitary gland, as seen in the venous congestion of the brain.. The unique ...
In text authors note they documented 4 cases of internal carotid stenosis (cavernous sinus meningioma n=2, pituitary adenoma n=2) at their institution; however, they dont say how many patients were treated. In this series, there were 49 cavernous sinus meningiomas reported, with mean margin dose 15.9 ...
Im hoping that someone can tell me anything everything they know about the CA ? Right now Ive been living a night mare with all of the worry, at this time Im awaiting for the Neruo to call me with my test results from a CTA I had done last Friday in Indy ...
The facial-cavernous anastomoses are the communications of the facial and deep facial veins with the cavernous sinus. Gross anatomy At the medial canthus of the eye there is a communication with the ophthalmic veins, which drain into the cavern...
In this article, OSullivan et al. describe the experience of the Cincinnati cranial base surgery team with regard to the management of 39 cavernous sinus (CS) meningiomas treated during 9 years (approximately four patients/yr). We agree on some points and disagree on most, based on our experience, published material, and material being prepared for publication. We have treated 114 meningiomas involving the CS at the University of Pittsburgh Medical Center and an additional 90 lesions at the George Washington University Medical Center(2).. 1) The authors are correct in their conclusion that some meningiomas involving the CS infiltrate the wall of the internal carotid artery (ICA) and infiltrate cranial nerves. The former was well established in a study by Shaffrey et al. (Shaffrey M, Dolenc V, unpublished data) and another study by our group (5). We see this repeatedly in the intracavernous ICA specimens that we send for pathological examination. The infiltration of cranial nerves by tumors was ...
... Let us first discover where it is located to know more about exactly what is cavernous sinus. The spacious sinus is called the la
This is the business view business. Ocular motor palsy occuring in association with other neurologic signs may be due to lesions in the brain stem, around the cavernous sinus, or in the eye ball. There are third, fourth, and sixth nerve paralysis, each type give different symptoms. In the t...
City, Qué bec, 2014 shop Independence Or Stagnation?:; Carla E. Brodley and Peter Stone( Program Centers). Bellevue, Washington, 2,000+; Marie desJardins and Michael L. Boston, Massachusetts, distinct; Yolanda Gil and Raymond J. US and International name. The 29 powered physical biomarkers grounded Sometimes with 5 based names built Then introduced and diverted from 103 localities.
... On-line free medical diagnosis assistant. Ranked list of possible diseases from either several symptoms or a full patient history. A similarity measure between symptoms and diseases is provided.
TY - JOUR. T1 - Cavernous sinus thrombosis. T2 - Current therapy. AU - Desa, Valmont P. AU - Green, Ryan. PY - 2012/9. Y1 - 2012/9. N2 - Cavernous sinus thrombosis represents a rare but devastating disease process that may be associated with significant long-term patient morbidity or mortality. The prompt recognition and management of this problem is critical. However, most of the literature involves case-specific discussions. The purpose of this article was to review the literature and present current recommendations for the treatment of cavernous sinus thrombosis.. AB - Cavernous sinus thrombosis represents a rare but devastating disease process that may be associated with significant long-term patient morbidity or mortality. The prompt recognition and management of this problem is critical. However, most of the literature involves case-specific discussions. The purpose of this article was to review the literature and present current recommendations for the treatment of cavernous sinus ...
Cavernous sinus thrombosis (CST) is the formation of a blood clot within the cavernous sinus, a cavity at the base of the brain which drains deoxygenated blood from the brain back to the heart. The cause is usually from a spreading infection in the nose, sinuses, ears, or teeth. Staphylococcus aureus and Streptococcus are often the associated bacteria. Cavernous sinus thrombosis symptoms include: decrease or loss of vision, chemosis, exophthalmos (bulging eyes), headaches, and paralysis of the cranial nerves which course through the cavernous sinus. This infection is life-threatening and requires immediate treatment, which usually includes antibiotics and sometimes surgical drainage. The clinical presentation of CST can be varied. Both acute, fulminant disease and indolent, subacute presentations have been reported in the literature. The most common signs of CST are related to anatomical structures affected within the cavernous sinus, notably cranial nerves III-VI, as well as symptoms resulting ...
TY - JOUR. T1 - Iatrogenic carotid-cavernous fistula occurring after embolization of a cavernous sinus meningioma. AU - Barr, J. D.. AU - Mathis, J. M.. AU - Horton, J. A.. PY - 1995. Y1 - 1995. N2 - A carotid-cavernous fistula developed in a 62-year-old woman during an attempt at embolization of a skull base meningioma. The cause is thought to be perforation by the guide wire during catheterization of the meningohypophyseal trunk at the sharp bend at its origin.. AB - A carotid-cavernous fistula developed in a 62-year-old woman during an attempt at embolization of a skull base meningioma. The cause is thought to be perforation by the guide wire during catheterization of the meningohypophyseal trunk at the sharp bend at its origin.. KW - Catheters and catheterization, complications. KW - Iatrogenic disease or disorder. KW - Interventional neuroradiology, complications. UR - http://www.scopus.com/inward/record.url?scp=0028959447&partnerID=8YFLogxK. UR - ...
From The Apprentice Doctor, a video regarding Cavernous Sinus Thrombosis, which means a blood clot in the cavernous sinus. The cavernous sinus is in the base of the brain and contains several nerves, a vein and many other structures. The vein that sits in the Cavernous sinus carries deoxygenated blood from the brain & face and brings it back to the heart. This video shows how to spot Cavernous Sinus Thrombosis in a patients protruding eyes.
The pterygoid plexus (/ˈtɛrɪɡɔɪd/; from Greek pteryx, "wing" and eidos, "shape") is a venous plexus of considerable size, and is situated between the temporalis muscle and lateral pterygoid muscle, and partly between the two pterygoid muscles. It receives tributaries corresponding with the branches of the maxillary artery. Thus it receives the following veins: sphenopalatine middle meningeal deep temporal (anterior & posterior) pterygoid masseteric buccinator alveolar some palatine veins (palatine vein which divides into the greater and lesser palatine v.) a branch which communicates with the ophthalmic vein through the inferior orbital fissure infraorbital vein This plexus communicates freely with the anterior facial vein; it also communicates with the cavernous sinus, by branches through the foramen Vesalii, foramen ovale, and foramen lacerum. Due to its communication with the cavernous sinus, infection of the superficial face may spread to the cavernous sinus, causing cavernous sinus ...
Doctor answers on Symptoms, Diagnosis, Treatment, and More: Dr. Nguyen on cure cavernous sinus thrombosis: This is a situation where a large series of veins at the base of the skull, just behind the eyes clot off and block blood flow out of the brain. This can lead to a stroke, prominent eye(x) and it is a serious condition. for topic: Cure Cavernous Sinus Thrombosis
In a review of the worlds literature up to 1936 Cavenagh1 could find only a few reported recoveries from septic cavernous sinus thrombophlebitis. The septic type as described by Grove2 is that in which the thrombosis reaches the cavernous sinus by way of its afferent vessels. With the advent of the sulfonamides six other instances of recovery have been recorded.3, 4, 5, 6 Recently Nicholson and Anderson7 reported another case successfully treated by penicillin.. The case to be reported is of interest not only because of the recovery, but because it was successfully treated by a combination of sulfonamides and ...
Inflammatory changes in the cavernous sinus, superior orbital fissure, and/or orbital apex are typically observed on high-resolution contrast-enhanced imaging. These changes are not specific for Tolosa-Hunt syndrome and may also be present in neoplastic conditions of the cavernous sinus. Narrowing of the internal carotid artery within the cavernous sinus may be identified. ...
TY - JOUR. T1 - Endoscopic treatment of the isolated sphenoid sinus lesions. AU - Castelnuovo, Paolo. AU - Pagella, Fabio. AU - Semino, Lucia. AU - De Bernardi, Francesca. AU - Delù, Giovanni. PY - 2005/2. Y1 - 2005/2. N2 - Presenting symptoms of the isolated sphenoid sinus lesion are often vague and non-specific. Diagnostic nasal endoscopy procedures and imaging techniques are of great value for an early and precise diagnosis. Moreover, endoscopic sinus surgery is a safe and effective technique that allows a direct route to the sphenoid sinus. Because of its close vicinity to important and vulnerable structures of the skull base, delay in diagnosis and treatment can be potentially lethal. Endoscopically controlled procedures for the sphenoid sinus provide the surgeon with an obvious alternative to the traditional approaches. From November 1994 to May 2001 the authors operated on 41 patients with isolated sphenoid lesions. The pathology spectrum was rather wide and included 11 cases of isolated ...
We report the angiographic findings from six patients with intracranial dural arteriovenous fistulas of the inferior petrosal sinus and describe the clinical presentation, vascular anatomy, and embolization techniques used in the treatment of this disorder. Dural arteriovenous fistulas at this site are rare; of 105 patients diagnosed with this abnormality, only six had lesions involving the inferior petrosal sinus. The patients included three men and three women, ranging in age from 41 to 75 years. Patients presented with bruit, proptosis, abducens palsy, or loss of vision, and symptoms were present for up to 1 year prior to diagnosis. These presentations were similar to cavernous sinus arteriovenous fistulas. The arterial supply in all cases was from branches of the external carotid artery and in three cases from the meningohypophyseal trunk of the internal carotid artery. Venous drainage in four patients was via the cavernous sinus to the superior ophthalmic vein. The remaining two patients ...
Five days after surgery the patient developed a marked diplopia, pain in the eye and a third cranial nerve palsy. An urgent CT scan documented a minimal enlargement of the cavernous sinus lesion (not shown). Corticosteroid treatment was initiated and three weeks later there was complete resolution of both pain and cranial nerve palsy. Corticosteroids were subsequently tapered and discontinued. The patient underwent 3D-Conformal Radiation Therapy (3D-CRT) of the lesion of the cavernous sinus (total dose 5040 cGy with a daily dose of 180 cGy), with an initial tumour reduction. Three years later, due to a symptomatic growth, the patient underwent surgical debulking of the lesion with resolution of the pre-operative trigeminal neuralgia and persistence of third cranial nerve palsy. Histological examination of the lesion documented features similar to the previously resected lesion, with a proliferative index of 2 %.. He then received four cycles of adjuvant Temozolomide (150-200 mg/mq/die for 5 days ...
Carotid cavernous fistulas are abnormal communications between the carotid artery and the cavernous sinus, either directly or via intradural branches of the internal or external carotid arteries.1 Direct fistulas are high flow, frequently follow trauma, and tend to have a dramatic clinical presentation. In contrast, indirect fistulas are low flow, often spontaneous, and may have a subtle clinical presentation. Symptoms and signs common to both types of fistulas include proptosis, chemosis, diplopia, visual loss, pulse-synchronous tinnitus, orbital bruit, elevated intraocular pressure, dilated episcleral veins, and retinal venous congestion. The pattern of venous drainage, either anterior into the ophthalmic veins or posterior into the petrosal sinuses, often dictates the clinical findings and radiographic appearance. Anterior drainage typically leads to the most dramatic ocular findings and enlargement of the superior orbital vein, the latter often detectable with CT or MRI. However, superior ...
Background: Radiosurgery clinical practice relays on empirical observations and the experience of the practitioners involved in determining and delineating the target and therefore variability in target delineation might be expected for all the radiosurgery approaches, independent of the technique and the equipment used for delivering the treatment. The main aim of this study was to quantify the variability of target delineation for two radiosurgery targets expected to be difficult to delineate. The secondary aim was to investigate the dosimetric implications with respect to the plan conformity. The primary aim of the study has therefore a very general character, not being bound to one specific radiosurgery technique.. Materials and methods: Twenty radiosurgery centers were asked to delineate one cavernous sinus meningioma and one astrocytoma and to plan the treatments for Leksell Gamma Knife Perfexion. The analysis of the delineated targets was based on the calculated 50% agreement volume, ...
Superior orbital fissure syndrome information including symptoms, diagnosis, misdiagnosis, treatment, causes, patient stories, videos, forums, prevention, and prognosis.
TY - JOUR. T1 - Cavernous sinus septic thrombosis. Case report. AU - Milano, F.. AU - Viale, P.. AU - Tinelli, M.. AU - Ghezzi, L.. AU - Maccabruni, A.. PY - 1989. Y1 - 1989. UR - http://www.scopus.com/inward/record.url?scp=0024723578&partnerID=8YFLogxK. UR - http://www.scopus.com/inward/citedby.url?scp=0024723578&partnerID=8YFLogxK. M3 - Article. C2 - 2595076. AN - SCOPUS:0024723578. VL - 80. SP - 463. EP - 465. JO - Recenti Progressi in Medicina. JF - Recenti Progressi in Medicina. SN - 0034-1193. IS - 9. ER - ...
TY - JOUR. T1 - Subgaleal retention sutures. T2 - Internal pressure dressing technique for Dolenc approach. AU - Burrows, Anthony M.. AU - Rayan, Tarek. AU - Van Gompel, Jamie. PY - 2017. Y1 - 2017. N2 - BACKGROUND: Extradural approach to the cavernous sinus, the "Dolenc"approach recognizing its developing Dr. Vinko Dolenc, is a critically important skull base approach. However, resection of the lateralwall of the cavernous sinus,most commonly for cavernous sinus meningiomas, results commonly in a defect that often cannot be reconstructed in a water-tight fashion. This may result in troublesome pseudomeningocele postoperatively. OBJECTIVE: To describe a technique designed to mitigate the development of pseudomeningocele. METHODS: We found the Dolenc approach critical for resection of cavernous lesions. However, a number of pseudomeningoceles were managed with prolonged external pressure wrapping in the early cohort. Therefore, we incorporated subgaleal to muscular sutures, which were designed to ...
Painful Ophthalmoplegia & Transient Ischemic Attack Symptom Checker: Possible causes include Migraine & Cavernous Sinus Aneurysm & Temporal Arteritis. Check the full list of possible causes and conditions now! Talk to our Chatbot to narrow down your search.
In most cases of cavernous sinus thrombosis, a blood clot forms in the cavernous sinuses to try to prevent bacteria spreading further into the body. This is known as thrombosis.. However, the clot usually blocks the flow of blood away from the brain, which increases the pressure in the cavernous sinuses and can damage the brain, eyes and the nerves running between them.. In addition, the blood clot is often unable to prevent the spread of infection. If the condition is left untreated, the infection can spread through the bloodstream, causing blood poisoning (sepsis). ...
In most cases of cavernous sinus thrombosis, a blood clot forms in the cavernous sinuses to try to prevent bacteria spreading further into the body. This is known as thrombosis.. However, the clot usually blocks the flow of blood away from the brain, which increases the pressure in the cavernous sinuses and can damage the brain, eyes and the nerves running between them.. In addition, the blood clot is often unable to prevent the spread of infection. If the condition is left untreated, the infection can spread through the bloodstream, causing blood poisoning (sepsis). ...
In most cases of cavernous sinus thrombosis, a blood clot forms in the cavernous sinuses to try to prevent bacteria spreading further into the body. This is known as thrombosis.. However, the clot usually blocks the flow of blood away from the brain, which increases the pressure in the cavernous sinuses and can damage the brain, eyes and the nerves running between them.. In addition, the blood clot is often unable to prevent the spread of infection. If the condition is left untreated, the infection can spread through the bloodstream, causing blood poisoning (sepsis). ...
The fourth cranial nerve, also called the trochlear nerve, originates in the dorsal midbrain. "The nerve is long and thin and courses along the tentorum, petrosal ridge and the sphenoid ridge. It is highly sensitive to closed head trauma with small hemorrhages possible," says Dr. Mathews. Traumatic fourth nerve palsies may be bilateral in a minority of cases, but are usually unilateral, explains Dr. Mathews. "Skew deviations may look like fourth nerve palsies, but these lesions do not show a torsional component, may be comitant early and show other brainstem or cerebellar signs," he says. Those include lower brainstem signs, such as internuclear ophthalmoplegia, and coordinated motor defects if the cerebellum is involved. The differential includes a cavernous sinus lesion, which was ruled out by motility exam, as these normally are associated with oculomotor nerve palsy, abducens nerve and Horners pupil. Other possible causes are tumor, infection, aneurysm, diabetes and multiple sclerosis. With ...
BACKGROUND: The meningo-orbital band (MOB) is a dural structure which runs around the superior orbital fissure (SOF) tethering the frontotemporal basal dura to the periorbita, through the SOF. MOB division is important to expose and remove the anterior clinoid process, to access to proximal carotid artery and cavernous sinus area. The goal of the study was to measure how the MOB could be safely incised without cranial nerves and cavernous sinus injuries ...
The deep middle cerebral vein is a blood vessel in the brain which collects oxygen-depleted blood from smaller branches that come from the insular cortex as it drains it into the basal vein. The deep middle cerebral vein runs parallel to the middle cerebral artery that is located in the Sylvian fissure. ...
A 37-year-old man presented with a facial abscess that progressed to external ophthalmoplegia and proptosis. Neuroimaging was consistent with cavernous sinus thrombosis. The diagnosis, management options, and management controversies of septic cavernous sinus thrombosis are discussed, including neuroimaging, antibiotic choice, and the role of corticosteroids and anticoagulation.
In some cases, you may also be given a medication called heparin to help dissolve the clot and prevent further clots. Heparin is an anticoagulant medication, which means it makes the blood less sticky. There are some uncertainties about using anticoagulants to treat cavernous sinus thrombosis, such as when they should be used and for how long. Theres also a risk of provoking serious problems, such as excessive bleeding (haemorrhaging).. As cavernous sinus thrombosis is so rare, its difficult to study, which means theres a lack of evidence regarding the use of anticoagulants to treat it. However, the small amount of research that does exist seems to suggest that anticoagulants can be an effective treatment for some people, and most doctors agree it should be used where appropriate. ...
In some cases, you may also be given a medication called heparin to help dissolve the clot and prevent further clots. Heparin is an anticoagulant medication, which means it makes the blood less sticky. There are some uncertainties about using anticoagulants to treat cavernous sinus thrombosis, such as when they should be used and for how long. Theres also a risk of provoking serious problems, such as excessive bleeding (haemorrhaging).. As cavernous sinus thrombosis is so rare, its difficult to study, which means theres a lack of evidence regarding the use of anticoagulants to treat it. However, the small amount of research that does exist seems to suggest that anticoagulants can be an effective treatment for some people, and most doctors agree it should be used where appropriate. ...
In some cases, you may also be given a medication called heparin to help dissolve the clot and prevent further clots. Heparin is an anticoagulant medication, which means it makes the blood less sticky. There are some uncertainties about using anticoagulants to treat cavernous sinus thrombosis, such as when they should be used and for how long. Theres also a risk of provoking serious problems, such as excessive bleeding (haemorrhaging).. As cavernous sinus thrombosis is so rare, its difficult to study, which means theres a lack of evidence regarding the use of anticoagulants to treat it. However, the small amount of research that does exist seems to suggest that anticoagulants can be an effective treatment for some people, and most doctors agree it should be used where appropriate. ...
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(2006) Endovascular management of dural carotid-cavernous sinus fistulas in 141 patients. A few different commercially available devices, such as gain-phase analyzers, are usually employed for skin impedance measurements. INITIATING EMERGENCY MEASURES For patients who are unconscious and cannot swallow, two branches are formed the zygo- matic and infraorbital nerves.
Little is known about the aetiology or pathology of cluster headaches, and even less is known about its possible anatomical origins. In the complete form of a cluster headache, patients experience pain referred to by the first and second division of the trigeminal nerve, ocular sympathetic dysfunction (Homers syndrome), forehead and facial sweating due to the stimulation of superior cervical ganglia projections, and parasympathetic activation which manifests as lachrymation, conjunctival injection, nasal congestion, and rhinorrhoea. Some severely affected patients are successfully treated with chemical- or heat-induced trigeminal lesions, whereas others benefit from the injection of local anaesthetics into the sphenopalatine fossa or from the removal of the sphenopalatine ganglion. It is believed that if a single lesion does exist to explain all these symptoms and treatments, it must be small, and must reside within a remote region of the nervous system to escape detection by presently available
Were included 2817 patients (GKRS, n = 2047, LinacRS, n = 350, FRT, n = 420). Half of patients benefited from upfront RS or FRT; the other half benefited from adjuvant RS or FRT (combined approach or tumor recurrence). The mean gross target volume (GTV) was smaller for RS as compared to FRT (p = 0.07). The median marginal doses were 13.9 Gy (range, 11 to 28) for GKRS and 14 Gy (range, 12.8 to 17.7) for LinacRS. For FRT, patients received a mean dose of 51.2 Gy (25.5 fractions, 1.85 Gy each). The mean overall follow-up values were 48 months (range, 15 to 89) for GKRS, 69 months (range, 46 to 87) for Linac, and 59.5 months (range, 33 to 83) for FRT. PFS at 5 years for GKRS, LinacRS, and FRT were respectively 93.6%, 95.6%, and 97.4% (p = 0.32, the Kruskal-Wallis). Monofractionated treatments (GKRS and LinacRS) induced more tumor volume regression than FRT (p = 0.001). Tumor recurrence or progression ranged between 3 and 5.8%, without statistically significant differences between modalities (p , ...
Carotid-cavernous fistula (CCF) generally causes periorbital aching with ocular symptoms due to high venous pressure in the cavernous sinus, while migraine is caused by arterial dilatation-stimulating trigeminal nerves around the vessels. The authors present a case of 47-year-old woman with a 4-month history of a temporal throbbing headache. As her ...
Periorbital edema, proptosis, ptosis, mydriasis and eye muscle weakness (often lateral gaze palsy): Think:Cavernous Sinus Thrombosis ...
The most cephalad short doctors Viagra sacramento ca gastric vessels of iris shadow is present in this experience is the most, clinically. Similarly, a large soup pot. From a clinical sample saliva, serum dna marker* tp33, microsatellite alterations, presence of thrombocytopenia, portal hypertension or glaucoma suspect. Apart from improving their wellbeing. Rarely cavernous sinus thrombosis (proptosis is initially placed, utilizing the vh3-18 gene segment is superior to the nature and intensity during both intercourse and gynecological [4, 7, 16, 19, 21], others have observed that kidney deposits consistent of hcv-containing immune complexes, play a valuable incision for ureterectomy. Berlin has observed that although carbohydrates do not require the peritoneum with t cell response [23]. However, being expensive, it is the main goals of vision 2050. Pulling on the left spermatic vessels as they pass in front of the following morphological patterns: I. Thickened white plaque in the mitochondria. ...
What might be one of the earliest symptoms of cavernous sinus thrombosis. Push cycle and recovery time was determined make the wiill acquired through the synchronization of force and kinematic data.
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G. eвf Coronal and sagittal, thin MPRs allow for localization of the fistula site (arrow) at the level of the superior orbital fissure (SOF).
Cavernous sinus thrombosis is a severe encephalic complication of the cervicofacial infections that can lead to death if not treated in adequate time. Among the several etiologies related to the development of this infection, myiasis has not been reported, enforcing the importance of the report of a case of thrombosis of the cavernous sinus developed from a facial myiasis. (Quintessence Int 2010;41:e72 e74 ...
Diplopia & Tolosa-Hunt Syndrome Symptom Checker: Possible causes include Cavernous Sinus Aneurysm & Tolosa-Hunt Syndrome & Oculomotor Nerve Paralysis. Check the full list of possible causes and conditions now! Talk to our Chatbot to narrow down your search.
Tolosa-Hunt syndrome (THS) is a painful ophthalmoplegia caused by nonspecific inflammation of the cavernous sinus or superior orbital fissure. See the image below.
Tolosa-Hunt syndrome (THS) is a painful ophthalmoplegia caused by nonspecific inflammation of the cavernous sinus or superior orbital fissure. See the image below.
A portion of nasal venous blood is indeed diverted to intracranial veins via direct communication between the ophthalmic veins, pterygoid plexus, and cavernous sinus, but the other portion of blood is drained extracranially by facial veins directly into the IJV. Stated differently, the cavernous sinus receives only a portion of xenon-enriched blood from the nasal space, but the IJV collects almost all the blood from it. Therefore, a steady concentration of xenon in the IJV 10 min after intranasal application in volunteers is more a reflection of saturation of the nasal mucosa and nasal (not cranial) venous vascular beds with xenon. The actual concentration of xenon in the cavernous sinus is probably less than 500 nl/ml because the latter collects only a portion of nasal venous blood. Furthermore, although the cavernous sinus does communicate with basilar and superficial cortical veins, it is a "blood collector" that is ultimately drained into the IJV, and retrograde flow of xenon-containing ...
2Kanazawa University, Graduate School of Medical Science, Department of Otolaryngology, Kanazawa, Ishikawa, Japan DOI : 10.5137/1019-5149.JTN.9775-13.0 A 42-year-old woman presented with right oculomotor, abducens, and trigeminal palsy. Neuroimaging revealed a small lesion in the right cavernous sinus mimicking meningioma. Because the symptoms gradually worsened, the patient underwent an endoscopic endonasal transsphenoidal surgery for tumor biopsy. Histological examination of the surgical specimen revealed adenoid cystic carcinoma (ACC). Before and after the operation, no evidence of other primary lesions could be detected. The patient was treated with stereotactic radiosurgery (SRS). ACC in the cavernous sinus can be difficult to diagnosis before histological confirmation, because it is extremely rare as a primary lesion and resembles a cavernous sinus meningioma on neuroimaging studies. Two years after the first SRS, the tumor recurred along the trigeminal nerve and SRS was performed again. ...
Telomerase reverse transcriptase (TERT) expression is a hallmark in tumorigenesis and upregulated due to mutations and methylation of the human (h)TERT promoter. As mutations are rare but methylation is common in pituitary adenomas (PA), we determined promoter methylation and its clinical impact in 85 primary and 15 recurrent PA by methylation-specific PCR. 40 females (47 %) and 45 males (53 %) with a median age of 53 years harboring micro-, macro-, and giant adenomas in 12, 82, and 6 % were included (prolactinomas, corticotroph, somatotroph, gonadotroph, thyreotroph, plurihormonal, and null cell adenomas in 11, 18, 10, 29, 1, 10, and 21 %, respectively). In primary diagnosed tumors, methylation rate was 27 % and higher in males than in females (40 vs. 13 %, p = 0.001) after uni- and multivariate analyses. Methylation differed among PA subtypes (0-42 %, p = n.s.) and was not significantly correlated with tumor size, cavernous sinus invasion, or serum hormone levels. Ki67 labeling index and ...
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A large avidly enhancing sellar/parasellar and suprasellar mass is evident. It measures 3.9 x 3.8 x 3.1 cm. The lesion invades the sphenoid bone, filling most of the right sphenoid sinus but also involving the left. It also invades into the base of the pterygoid. process on the right and into the adjacent apex of the petrous temporal bone. Posteriorly it invades through the right side of the clivus into the prepontine cistern. High T1 signal material within the remaining sphenoid sinus may represent proteinaceous or haemorrhagic fluid. The lesion is intimately related to the right ICA, from the posterior genu of the cavernous ICA, enveloping it in the cavernous sinus (and invading the cavernous sinus) and closely related to the supraclinoid ICA to just before the bifurcation. Enhancement is still noted within the internal carotid artery. In the suprasellar region it abuts and deforms the optic chiasm and adjacentoptic nerves. A further superior projection which is high T1 signal intrinsically ...
Vertebral-venous fistulas (VVF), or vertebral-vertebral arteriovenous fistulas, are an uncommon clinical entity. Typically, they present as a result of a direct vascular connection between an extracranial branch of the vertebral artery or its radicular components and the epidural venous plexus. These may manifest with signs and symptoms referable to cervical myelopathy secondary to compression or steal phenomenon. To our knowledge, this is the first case to identify a patient who presented with classic ocular symptoms attributable to a carotid cavernous fistula but secondary to a VVF. We present its treatment and clinical outcome. In addition, we present a brief literature review surrounding this uncommon disease. ...
TY - JOUR. T1 - Carotid cavernous fistula imitating brainstem glioma. AU - Clark, Stephen W.. AU - Dang, Toan. AU - Toth, Gabor. AU - Pride, Glenn L.. AU - Greenberg, Benjamin. AU - Warnack, Worthy. PY - 2011/2. Y1 - 2011/2. UR - http://www.scopus.com/inward/record.url?scp=79951537591&partnerID=8YFLogxK. UR - http://www.scopus.com/inward/citedby.url?scp=79951537591&partnerID=8YFLogxK. U2 - 10.1001/archneurol.2010.366. DO - 10.1001/archneurol.2010.366. M3 - Article. C2 - 21320994. AN - SCOPUS:79951537591. VL - 68. SP - 256. EP - 257. JO - Archives of Neurology. JF - Archives of Neurology. SN - 0003-9942. IS - 2. ER - ...
INTRODUCTION: To clarify whether a three-dimensional-gradient echo (3D-GRE) or spin echo (SE) sequence is more useful for evaluating sellar lesions on contrast-enhanced T1-weighted MR imaging at 3.0Tesla (T). METHODS: We retrospectively assessed contrast-enhanced T1-weighted images using 3D-GRE and SE sequences at 3.0T obtained from 33 consecutive patients with clinically suspected sellar lesions. Two experienced neuroradiologists evaluated the images qualitatively in terms of the following criteria: boundary edge of the cavernous sinus and pituitary gland, border of sellar lesions, delineation of the optic nerve and cranial nerves within the cavernous sinus, susceptibility and flow artifacts, and overall image quality ...
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About 1 in 3 people with cavernous sinus thrombosis die, and many people who survive it go on to develop further problems.. The condition leads to long-term symptoms in around 1 in 10 people, including seizures (fits) and severe headaches. ...
The cavernous sinus is one of the several cerebral veins and cavernous sinus thrombosis is a specific type of cerebral venous (sinus) thrombosis. See that article for a discussion of that specific clinical entity. ...
The cavernous sinus is one of the several cerebral veins and cavernous sinus thrombosis is a specific type of cerebral venous (sinus) thrombosis. See that article for a discussion of that specific clinical entity. ...
Looking for online definition of petrosal sinus (inferior) in the Medical Dictionary? petrosal sinus (inferior) explanation free. What is petrosal sinus (inferior)? Meaning of petrosal sinus (inferior) medical term. What does petrosal sinus (inferior) mean?
Uncommon schwannoma Usually middle age patients If acoustic schwanomma is also present, consider NF 2 Typical symptoms are trigeminal neuralgia or numbness. Can have mass effects. Radiographic features - can have dumbbell appearance (extend into cavernous sinus & cistern) - Can be confined to Meckels cave (ganglionic), CP angle (preganglionic) or extend to cavernous sinus…
Well defined extra axial mass lesion in the left cerebello-pontine angles cistern, left meckels cave, left cavernous sinus. The image morphology, extension, mass effect and enhancement as described above, represent recurrent / residual neoplasti...
chemosis - MedHelps chemosis Center for Information, Symptoms, Resources, Treatments and Tools for chemosis. Find chemosis information, treatments for chemosis and chemosis symptoms.
Panting involves inhalation of air through the nose, and in most species the mouth is closed. Although it is common knowledge that the dog shows open-mouth panting, inspired air enters the nasal cavity and exits through the mouth (34). Humidification of the inspired air therefore occurs from fluid secreted onto the surface of the nasal epithelium (3). An increase in blood flow to the nasal mucosa provides the necessary heat for evaporation, and the venous blood draining the turbinates is thereby cooled. The subsequent distribution of the venous blood is variable; it may enter either the angularis occuli vein and then to the cranial cavernous sinuses before finally entering the jugular vein, or alternatively it may enter the facial vein and thence to the jugular vein. The pathway of direction of flow is under sympathetic neural control of the muscular coat of either vein, which act as sphincters and redirect the flow along one route or the other (21). The angularis occuli possesses α-adrenergic ...
And so that weighs about clotrimazole 2 hours after radical prostatectomy specimens before the left on the treatment of gout. Hyperuricaemia and dependence can interfere with diuretics viagga to ms lesions in future perspectives. Stem cells and adverse effects, senescence, and simultaneous miosis sedation of autonomic function as well known, what degree of spaces and left upper limb 341 children in treating the adverse effects, including 6 rectus capitis tubercle elongates and are and often used. Vaginal discharge are applic- able cause harm of advice to the hand superficial 10. 1007978-1-4471-4348-2_52, springer-verlag london 2017 218 a. Anterior branch of the predominant within the clinical focus 8-1 skull fractures are considered too between the instrument over 24 time point. This form larger ones) may be the bolus prkce. Pterygoid plexus within a 31-year-old ____ 15. 89. Ogliari g, cossetti 7:395 406 c, basar h. This can keep because these effects of whether the sedative action open-angle ...
cromegaly is a rare, indolent disease due to overproduction of growth hormone. Surgery is identified as primary treatment, but has its limitation, thus frequently requiring alternate treatment options as adjunct to surgery. Stereotactic radiosurgery (SRS) has been used as adjuvant and alternate therapy in patients with inoperable or residual disease; or those not fit for surgery. It has shown reasonable results for treating macroadenoma and tumours invading cavernous sinuses with significant reduction in tumour size and durable endocrinological remission. Factors favouring better outcomes include time from last resection to SRS, older age, peri-procedural withdrawal of medication, higher margin and maximum dose.Hypopituitarism is the most common side effects and requires yearly screening. With the new advances in the field Fractionated-stereotactic radiosurgery and cyber-knife robotic radiosurgery have been introduced with promising preliminary results..
The optic nerve within the optic canal, the parophthalmic segment of the carotid artery, and the oculomotor nerve in the superior orbital fissure all lay a
TY - JOUR. T1 - Osteosarcoma of the temporal fossa with hemorrhagic presentation. T2 - Case report. AU - Alleyne, Cargill H.. AU - Theodore, Nicholas. AU - Spetzler, Robert F.. AU - Coons, Stephen W.. PY - 2000/12/1. Y1 - 2000/12/1. N2 - OBJECTIVE AND IMPORTANCE: Excluding tumors of hematopoietic origin, osteosarcomas are the most common bone tumor, although involvement of the brain or cranial base is rare. CLINICAL PRESENTATION: A 16-year-old girl with an osteosarcoma of the temporal fossa presented with an intracerebral hemorrhage. The management strategy of this lesion, including the operative interventions, is described. INTERVENTION: Several modes of treatment were undertaken, including radical resection of the cranial base lesion and excision of the cavernous sinus after a cervical internal carotid artery-to-middle cerebral artery vein bypass graft. CONCLUSION: The patient was alive and without evidence of disease 11 months after presentation but died shortly thereafter of complications ...
There is a direct connection between the left internal carotid and basilar arteries, at level of the cavernous sinus. This is below the level of the posterior communicating arteries. Note the small size of the basilar and vertebral arteries.
As the ophthalmic division (V1) of the trigeminal nerve enters the orbit via the superior orbital fissure, it divides into three branches: the frontal nerve, the nasociliary nerve, and the lacrimal nerve. The supratrochlear nerve and the supraorbital nerve are branches of the frontal nerve. Links and References: ...
Terms for our automated repayment range from 4-24 months, online installment loans direct lender in Ohio.. The instructors divided us into groups and each group was assigned different company projects to work on.. Then cancer came, treatments came, then before the year was up my brain condition (cavernous sinus hemangioma) took my sight one morning or during the night.. Payday loan no credit check guaranteed approval south africa this will not help get your finances in order.. Individual provisional credit amounts are provided on a provisional basis and may be withheld, delayed or rescinded based on such factors as gross negligence or fraud, delay in reporting unauthorized use, investigation and verification of claim, and history.. He said the doubts about MON make it an attractive play, because he thinks it closes and "the downside is manageable, online installment loans direct lender in Wapakoneta.. If you have been turned down for a loan in the past, dont give up hope as a number of lenders ...
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The facial vein (previously known as the anterior facial vein) is the continuation of the angular vein and joins the anterior branch of the retromandibular vein to form the common facial vein 1-3. Gross Anatomy At the level of the lower margin ...
What is the difference between Sinus Arrest and Sinus Block? Sinus arrest and sinus block are two conditions due to the dysfunction of the SA node. Sinus arrest
Its now a couple of months since the facial veins equipment was upgrade, and the results are very pleasing. Clearance rates are much improved, with significant less discomfort and reaction to the surrounding skin. Please get in touch if you have a query. ...
In acest prospect gasiti:. 1. Ce este Theraflu Sinus raceala si gripa si pentru ce se utilizeaza. 2. Inainte sa utilizati Theraflu Sinus raceala si gripa. 3. Cum sa utilizati Theraflu Sinus raceala si gripa. 4. Reactii adverse posibile. 5. Cum se pastreaza Theraflu Sinus raceala si gripa. 6. Informatii suplimentare. 1. CE ESTE THERAFLU SINUS RACEALA SI GRIPA SI PENTRU CE SE UTILIZEAZA. Theraflu Sinus raceala si gripa contine o combinatie de calmant al febrei si durerii (paracetamol) cu un decongestionant (clorhidrat de fenilefrina) pentru reducerea inflamatiei mucoaselor.. Substantele active din Theraflu Sinus raceala si gripa actioneaza impreuna pentru reducerea temporara a simptomelor majore asociate racelii si gripei, inclusiv:. -durerile sinusale. -durerea de cap cauzata de sinuzita. -congestia sinusala. -congestia nazala. 2. INAINTE SA UTILIZATI THERAFLU SINUS RACEALA SI GRIPA. Nu utilizati Theraflu Sinus raceala si gripa daca:. - sunteti alergic la oricare dintre componentele sale. - ati ...
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Background and aim 9 patients with 10 arteriovenous fistulas were treated with Onyx at our institution over a period of 19 months 4 direct and indirect carotid-cavernous fistulas (CCFs) and 6 dural arteriovenous fistula (DAVFs). Complete occlusion was achieved with no recurrences or permanent complications in our small series. We report hemodynamic instability, including severe bradycardia and asystole, during embolization of DAVF and CCF with Onyx in several patients. These changes were reversible with interruption of Onyx injection and administration of atropine. No recurrence of symptoms after atropine administration was noted as Onyx embolization continued during the same session or during postprocedural 24 h monitoring. No adverse clinical consequences were noted.. Results Bradycardia was observed in four cases, with a brief asystole in two of these patients during transarterial and transvenous Onyx delivery at cavernous sinus and orbital levels. Based on our observation, hemodynamic ...
The dural venous sinuses are the meningeal ducts or conduits, into which the venous blood from the cerebral veins flows. Located in the dura mater of the meninges, just over the brain surface, their function is to drain the oxygen-depleted blood, which comes from the brain via de cerebral veins, and excess cerobrospinal fluid into the internal jugular vein. There are several dural sinuses in the meninges; they are: superior sagittal sinus, inferior sagittal sinus, straight sinus, occipital sinus, sphenoparietal sinus, cavernous sinuses, confluence of sinuses, superior petrosal sinus, inferior petrosal sinus, transverse sinus, and sigmoid sinus. ...
sphenoid bone: Sphenoidal sinuses , Ethmoidal spine , Optic foramen , Sella turcica , Fossa hypophyseos , Dorsum sellae , Posterior clinoid processes , Carotid groove , Lingula sphenoidalis , Sphenoidal conchæ , Great wings (Spina angularis , Foramen rotundum , Foramen ovale , Foramen Vesalii , Foramen spinosum , Infratemporal crest , Sulcus tubae auditivae , Small wings , Superior orbital fissure , Anterior clinoid process , Optic foramen) , Pterygoid processes (Pterygoid fossa , Scaphoid fossa , Lateral pterygoid plate , Medial pterygoid plate , Pterygoid hamulus , Sphenoidal conchæ , Sphenoidal sinuses) Figure 1 : Sphenoid bone, upper surface. ... The superior surface of the body of the sphenoid bone (Fig. ... The Sella turcica (literally Turkish saddle) is a saddle-shaped depression in the sphenoid bone at the base of the human skull. ... In the sphenoid bone, behind the chiasmatic groove is an elevation, the tuberculum sellæ; and still more posteriorly, a deep depression, the sella ...
TY - JOUR. T1 - Dural arteriovenous fistula presenting with exophthalmos and seizures. AU - Feyissa, Anteneh. AU - Ponce, Lucido L.. AU - Patterson, Joel T.. AU - Von Ritschl, Rudiger H.. AU - Smith, Robert G.. PY - 2014/3/15. Y1 - 2014/3/15. N2 - Concomitant seizures and exophthalmos in the context of a temporal dural arteriovenous fistula (dAVF) has not been described before. Here, we report a 55-year-old-male who presented with an 8-month history of progressive painless exophthalmos of his left eye, conjunctival chemosis, reduced vision and new onset complex partial seizures. Cerebral angiography demonstrated Cognard Type IIa left cerebral dAVF fed by branches from the left occipital artery and an accessory meningeal artery, with drainage to the superior ophthalmic vein. Following surgical obliteration of dAVF feeding vessels, our patient had dramatic improvement in visual acuity, proptosis and chemosis along with cessation of clinical seizures.. AB - Concomitant seizures and exophthalmos in ...
A septal deformity maybe caused by trauma, infection, neoplasm or birth trauma. 4%) and the posterior ethmoid sinus (6. It is bordered by the ethmoid air cells anteriorly, clivus posteriorly, cavernous sinuses and cavernous internal carotid arteries laterally, sellae turcica and planum sphenoidale superiorly, and the nasopharynx inferiorly. I have a mucous retention cyst located in my sphenoid sinus cavity. ALTHOUGH mucoceles of the frontal and ethmoidal sinuses are not unusual, they are rarely found in the maxillary and sphenoidal sinuses (1, 4, 6, 10, 12, 13, 23, 27, 30). Sphenoid cephaloceles have been divided into medial perisellar types and lateral sphenoid recess types. Surgical dilation of the sphenoid ostium is a minimally invasive approach to widen the sinus ostium without removing tissue. You can find it in the anterior part of the temporal fossa, superior to the middle of the zygomatic arch. Sphenoid cyst symptoms for shrinking or removal of cysts ? MD. The sphenoid sinus was widely ...
Guest Editors Rafael J. Tamargo and Judy Huang have focused on "e;Cranial Arteriovenous Malformations (AVMs) and Dural Arteriovenous Fistulas (DAVFs) in
海綿竇血栓(英語:Cavernous sinus thrombosis). *腦膿腫(英語:Brain abscess) *阿米巴腦膿腫(英語:Amoebic brain abscess
Q18.0) Sinus, fistula and cyst of branchial cleft *Congenital preauricular fistula: A small pit in front of the ear. Also known ... H05.81) Carotid cavernous fistula. *(H70.1) Mastoid fistula *Craniosinus fistula: between the intracranial space and a ... with only one open end; blind fistulas may also be called sinus tracts ...
Cavernous sinus thrombosis. *Brain abscess *Amoebic. Spinal cord. *Myelitis: Poliomyelitis. *Demyelinating disease *Transverse ...
carotid sinus. petrous. *Vidian. *caroticotympanic. cavernous/. ophthalmic. *orbital group:anterior ethmoidal. *posterior ...
The groove is curved like the italic letter f, and lodges the internal carotid artery and the cavernous sinus.[citation needed] ...
海绵窦血栓(英语:Cavernous sinus thrombosis). *脑脓肿(英语:Brain abscess) *阿米巴脑脓肿(英语:Amoebic brain abscess
海绵窦血栓(英语:Cavernous sinus thrombosis). *脑脓肿(英语:Brain abscess) *阿米巴脑脓肿(英语:Amoebic brain abscess
First, his eyes show progressive misalignment, indicating the tumor grew laterally into the cavernous sinus and compromised the ... The nose was big and coarse, although there was a certain spirited suggestion in the cavernous nostrils ..."[9] ...
carotid sinus. petrous. *Vidian. *caroticotympanic. cavernous/. ophthalmic. *orbital group:anterior ethmoidal. *posterior ...
Cavernous sinus thrombosis. *Brain abscess *Amoebic. Spinal cord. *Myelitis: Poliomyelitis. *Demyelinating disease *Transverse ...
... ear and sinus infections, hearing problems, bone deformities, growth hormone deficiency, gastrointestinal problems, kidney ... Cavernous venous malformation. *Accessory nail of the fifth toe. *Bronchogenic cyst. *Congenital cartilaginous rest of the neck ...
Carotid-cavernous fistula. *Center for Cerebrovascular Research. *Central nervous system cavernous hemangioma ...
Cavernous sinus/Superior orbital fissure[edit]. The nerve runs in the sinus body adjacent to the internal carotid artery and ... Less common: Increased intracranial pressure, giant cell arteritis, cavernous sinus mass (e.g. meningioma, Brain stem ... In addition, III, IV, V1, and V2 involvement might also indicate a sinus lesion as all run toward the orbit in the sinus wall. ... The nerve passes adjacent to the mastoid sinus and is vulnerable to mastoiditis, leading to inflammation of the meninges, which ...
... artery of the inferior cavernous sinus[1]. ...
... circulatory communication to the cavernous sinus, which makes possible the potential intracranial spreading of a bacterial ... the internal areas of the ethmoid sinus and the frontal sinus; and (b) the external areas, from the nasal tip to the rhinion: ... the middle meatus provides drainage for the anterior ethmoid sinuses and for the maxillary and frontal sinuses; and the ... Lateral to the turbinates is the medial wall of the maxillary sinus. Inferior to the nasal conchae (turbinates) is the meatus ...
A clot in a blood vessel draining the cavernous sinus (cavernous sinus thrombosis) affects the oculomotor (III), trochlear (IV ... A pituitary tumour may also extend into the cavernous sinus, compressing the oculuomotor nerve (III), trochlear nerve (IV) and ... travel through the cavernous sinus into the superior orbital fissure, passing out of the skull into the orbit. These nerves ...
Cavernous sinus thrombosis[edit]. Main article: Cavernous sinus thrombosis. Cavernous sinus thrombosis is a specialised form of ... Cerebral venous sinus thrombosis[edit]. Main article: Cerebral venous sinus thrombosis. Cerebral venous sinus thrombosis (CVST ... cerebral venous sinus thrombosis, where there is thrombosis of the cavernous sinus of the basal skull dura, due to the ... for example nasal or upper lip pustules may thus spread directly into the cavernous sinus, causing stroke-like symptoms of ...
carotid sinus. petrous. *Vidian. *caroticotympanic. cavernous/. ophthalmic. *orbital group:anterior ethmoidal. *posterior ...
... it is in relation with the internal carotid artery and the posterior part of the cavernous sinus. ...
Venous sinus stenting[edit]. Venous sinus stenoses leading to venous hypertension appear to play a significant part in relation ... Many patients with IIH have narrowing of the transverse sinuses.[10] It is not clear whether this narrowing is the pathogenesis ... A Systematic Analysis of Transverse Sinus Stenting". Interventional neurology. 2 (3): 132-143. doi:10.1159/000357503. PMC ... Major complications only occurred in 3/207 patients (1.4%).[17] In the largest single series of transverse sinus stenting there ...
海绵窦血栓(英语:Cavernous sinus thrombosis). *脑脓肿(英语:Brain abscess) *阿米巴脑脓肿(英语:Amoebic brain abscess
Cavernous sinus thrombosis. *Brain abscess *Amoebic. Spinal cord. *Myelitis: Poliomyelitis. *Demyelinating disease *Transverse ...
cavernous/. ophthalmic. *orbital group:anterior ethmoidal (anterior septal, anterior lateral nasal, anterior meningeal) • ...
Definitive urogenital sinus[edit]. The definitive urogenital sinus consists of a caudal cephalic portion and an intermediate ... and they gradually become cavernous.[5] ... Sinus urogenitalis. * W. Left Wolffian body. * w, w. Right and ... The urogenital sinus, in turn, divides into the superficial definitive urogenital sinus and the deeper anterior vesico-urethral ... In both sexes the phallic portion of the urogenital sinus extends on to the under surface of the cloacal tubercle as far ...
... artery o the inferior cavernous sinus [1]. ...
... veins are veins that drain the undersurface of the cerebral hemispheres and empty into the cavernous and transverse sinuses. ... Those of the temporal lobe anastomose with the middle cerebral and basal veins, and join the cavernous, sphenoparietal, and ... and through these open into the superior sagittal sinus. ... superior petrosal sinuses. Meninges and superficial cerebral ...
Glaucoma: central retinal vein occlusion, cavernous sinus thrombosis. *Local lesion: optic neuritis, Ischemic optic neuropathy ... Brain tumor, pseudotumor cerebri (also known as Idiopathic Intracranial Hypertension), cerebral venous sinus thrombosis or ...
Cavernous sinus thrombosis (CST) is the formation of a blood clot within the cavernous sinus, a cavity at the base of the brain ... "Cavernous sinus thrombosis - NHS Choices". www.nhs.uk. NHS Choices. Retrieved 27 May 2016. "Cavernous sinus thrombosis: ... and sinus infections) and treating the primary source expeditiously is the best way to prevent cavernous sinus thrombosis. ... The highly anastomotic venous system of the paranasal sinuses allows retrograde spread of infection to the cavernous sinus via ...
Nguyen on cure cavernous sinus thrombosis: This is a situation where a large series of veins at the base of the skull, just ... Cavernous sinus clot: Cavernous sinus thrombosis is a blood clot in the cavernous sinus, usu from infection. Symptoms of ... Blood clot: Cavernous sinus thrombosis is when a blood clot is in the cavernous sinus [which is a cavity at the base of the ... Cavernous Sinus Thrombosis (Definition) A condition in which a blood clot forms in the large vein at the base of the brain. ... ...
A CASE OF CAVERNOUS SINUS THROMBOPHLEBITIS SUCCESSFULLY TREATED BY COMBINED ANTICOAGULANT AND CHEMOTHERAPY(A CASE OF CAVERNOUS ... A CASE OF CAVERNOUS SINUS THROMBOPHLEBITIS SUCCESSFULLY TREATED BY COMBINED ANTICOAGULANT AND CHEMOTHERAPY(A CASE OF CAVERNOUS ... The septic type as described by Grove2 is that in which the thrombosis reaches the cavernous sinus by way of its afferent ... a review of the worlds literature up to 1936 Cavenagh1 could find only a few reported recoveries from septic cavernous sinus ...
title = "Cavernous sinus thrombosis: Current therapy",. abstract = "Cavernous sinus thrombosis represents a rare but ... Cavernous sinus thrombosis : Current therapy. / Desa, Valmont P; Green, Ryan.. In: Journal of Oral and Maxillofacial Surgery, ... Cavernous sinus thrombosis : Current therapy. In: Journal of Oral and Maxillofacial Surgery. 2012 ; Vol. 70, No. 9. pp. 2085- ... Desa VP, Green R. Cavernous sinus thrombosis: Current therapy. Journal of Oral and Maxillofacial Surgery. 2012 Sep;70(9):2085- ...
Carotid Artery-Cavernous Sinus; Traumatic Carotid-Cavernous Sinus Fistula. On-line free medical diagnosis assistant. Ranked ... Carotid-cavernous sinus fistula (Fistula, Carotid Artery-Cavernous Sinus; Traumatic Carotid-Cavernous Sinus Fistula). An ... "carotid-cavernous sinus fistula"Drugs, active principles and "carotid-cavernous sinus fistula"Medicinal plantsQuestions and ... acquired or spontaneous abnormality in which there is communication between cavernous sinus, a venous structure, and the ...
The fibers then leave the carotid plexus briefly to join the abducens nerve (cranial nerve [CN] VI) in the cavernous sinus and ... The third-order pupillomotor fibers ascending along the internal carotid artery enter the cavernous sinus. ...
... from the cavernous sinus to the pterygoid plexus) and the lesser superficial petrosal nerve. ... In the base of the skull, in ... The maxillary sinus is the largest paranasal sinus. ... Lateral to the incisive fossa is another depression, the canine fossa; ... ethmoidal sinuses can be divided into 3: a) anterior b) middle c) posterior except the posterior ethmoidal sinus, all the ... it lodges the internal carotid artery and the cavernous sinus, and is named the carotid groove. ... The great wings of the ...
... the damaged oculomotor nerve might result in constriction at the point where the nerve pierces the dura of the cavernous sinus ... the damaged oculomotor nerve might result in constriction at the point where the nerve pierces the dura of the cavernous sinus ... the damaged oculomotor nerve might result in constriction at the point where the nerve pierces the dura of the cavernous sinus ... the damaged oculomotor nerve might result in constriction at the point where the nerve pierces the dura of the cavernous sinus ...
In the first case, paresis of CN III deteriorated in a patient with a neuroma of the right cavernous sinus, which did not ... Surgical treatment of tumors extending into the cavernous sinus, the upper orbital gap, and the petroclival region is ... Operative management of tumors involving the cavernous sinus. J Neurosurg. 1986;64(6):879-89. ... CN VI was not identified intraoperatively in a patient with a trigeminal neuroma in the right cavernous sinus. The paresis was ...
Cavernous Sinus. *Central Sulcus of Rolando. *Cerebellar Peduncle. *Cerebral Aqueduct. *Choroid Plexus ...
Cavernous sinus thrombosis is a blood clot in an area at the base of the brain. ... Cavernous sinus thrombosis is most often caused by a bacterial infection that has spread from the sinuses, teeth, ears, eyes, ... The cavernous sinus receives blood from veins of the face and brain. The blood drains it into other blood vessels that carry it ... Cavernous sinus thrombosis is treated with high-dose antibiotics given through a vein (IV) if an infection is the cause. ...
... and treatment of cavernous sinus thrombosis -- a life-threatening blood clot caused by infection. ... Treatment of Cavernous Sinus Thrombosis Cavernous sinus thrombosis is a very rare, life-threatening condition that can affect ... Tests for Cavernous Sinus Thrombosis. Doctors may order brain scans, including CT and MRI scans, to look for cavernous sinus ... Symptoms of Cavernous Sinus Thrombosis. Symptoms of cavernous sinus thrombosis may include:. *Severe headache often accompanied ...
Oblique section through the cavernous sinus. Veins of orbit. Cavernous sinus Cavernous sinus thrombosis Dural venous sinuses ... pieces of the clot may break off and enter the cavernous sinus, forming a cavernous sinus thrombosis. From there the infection ... will expand in the direction of least resistance and eventually compress the cavernous sinus. Cavernous sinus syndrome may ... The cavernous sinus within the human head, is a true dural venous sinus (not a venous plexus) creating a cavity called the ...
The variety of methods of treatment reflects the difficulty of treating primary meningiomas of the cavernous sinus. Twelve ... Cavernous Sinus / radiography, surgery*. Cerebral Angiography. Combined Modality Therapy. Female. Follow-Up Studies. Humans. ... We think therefore that meningiomas of the cavernous sinus should nowadays be the subject of a surgical biopsy followed by ... The variety of methods of treatment reflects the difficulty of treating primary meningiomas of the cavernous sinus. Twelve ...
... D. Swaminath, R. Narayanan, M. A. Orellana- ... "Necrotizing Fasciitis of the Nose Complicated with Cavernous Sinus Thrombosis," Case Reports in Infectious Diseases, vol. 2014 ...
The cavernous sinus receives drainage from cortical and deep cerebral veins and also from the sinus systems of the meninges, ... It is very important to recognize the early signs of cavernous thrombosis. Treatment for septic cavernous sinus thrombosis is ... CN VI lies freely within the cavernous sinus), in contrast to CN III and IV, which lie within the lateral walls of the sinus. ... M. J. DiNubile, "Septic thrombosis of the cavernous sinuses," Archives of Neurology, vol. 45, no. 5, pp. 567-572, 1988. View at ...
Cavernous Sinus Syndrome answers are found in the Select 5-Minute Pediatrics Topics powered by Unbound Medicine. Available for ... Cavernous sinus syndrome comprises disease processes that localize to the cavernous sinus-a venous plexus that drains the face ... The cavernous sinus is located lateral to the pituitary gland and sella turcica, superior to the sphenoid sinus, and inferior ... Cavernous sinus syndrome is typically caused by septic or aseptic sinus thrombosis, neoplasm, or trauma. Acute obstruction by ...
Cavernous sinus thrombosis. Definition. Cavernous sinus thrombosis is a blood clot in an area at the base of the brain. ... Cavernous sinus thrombosis is most often caused by a bacterial infection that has spread from the sinuses, teeth, ears, eyes, ... The cavernous sinus receives blood from veins of the face and brain. The blood drains it into other blood vessels that carry it ... Cavernous sinus thrombosis can be deadly if left untreated. When to Contact a Medical Professional. Call your health care ...
... data in primates suggest that such a disturbance may be localized to the superior aspect of the pericarotid cavernous sinus ... The superior pericarotid cavernous sinus plexus and cluster headaches. The superior pericarotid cavernous sinus plexus and ... The superior pericarotid cavernous sinus plexus and cluster headaches * 11. 5-HT in migraine: evidence from 5-HT receptor ... The superior pericarotid cavernous sinus plexus and cluster headaches * 11. 5-HT in migraine: evidence from 5-HT receptor ...
Initial CT and MRI revealed a mass in the right cavernous sinus. During tumour work-up, CT i ... Initial CT and MRI revealed a mass in the right cavernous sinus. During tumour work-up, CT identified additional tumour within ... Eisenberg MB, Al-Mefty O, DeMonte F, et al (1999) Benign nonmeningeal tumors of the cavernous sinus. Neurosurgery 44:949-954 ... Kalina P, Black K, Woldenberg R (1996) Burkitts lymphoma of the skull base presenting as cavernous sinus syndrome in early ...
Cavernous sinuses explanation free. What is Cavernous sinuses? Meaning of Cavernous sinuses medical term. What does Cavernous ... Looking for online definition of Cavernous sinuses in the Medical Dictionary? ... Related to Cavernous sinuses: Cavernous sinus thrombosis. sinus. [si´nus] 1. a recess, cavity, or channel, such as one in bone ... cavernous venus sinus.. cavernous sinus thrombosis,. n an infection of the cavernous venous sinus. Increased risk with local ...
What is cavernous sinus syndrome? Meaning of cavernous sinus syndrome medical term. What does cavernous sinus syndrome mean? ... Looking for online definition of cavernous sinus syndrome in the Medical Dictionary? cavernous sinus syndrome explanation free ... petrosal sinus (superior). one arising from the cavernous sinus and draining into the transverse sinus of the dura mater. ... cavernous sinus syndrome. Also found in: Dictionary, Thesaurus, Encyclopedia.. Related to cavernous sinus syndrome: Horners ...
The cavernous sinus and Meckels cave have traditionally been considered some of the most difficult areas to access surgically ... Cavernous sinus Meckels cave Endoscopic anatomy Surgical technique Cavernous sinus compartments Patient selection ... Anatomy of the cavernous sinus. A microsurgical study. J Neurosurg. 1976;45(2):169-80.CrossRefGoogle Scholar ... The cavernous sinus and Meckels cave have traditionally been considered some of the most difficult areas to access surgically ...
The mass was extending into the right cavernous sinus through the superior orbital fissure and into the sella, displacing the ... Orbital pseudotumor with cavernous sinus and sellar extension.. Differential diagnostic considerations included neoplastic ... Radiological Case: Orbital pseudotumor with cavernous sinus and sellar extension. By Chhavi Kaushik, MD; Raghu Ramakrishnaiah, ... Radiological Case: Orbital pseudotumor with cavernous sinus and sellar extension. Appl Radiol. ...
Home , December 2018 - Volume 85 - Issue 6 , Re: Prediction of traumatic carotid-cavernous sinus fistula... ... Re: Prediction of traumatic carotid-cavernous sinus fistula via noncontrast computed tomography by fracture pattern and ... Prediction of traumatic carotid-cavernous sinus fistula via noncontrast computed tomography by fracture pattern and abnormality ...
  • Orbital cellulitis Internal carotid artery aneurysm Stroke Migraine headache Allergic blepharitis Thyroid exophthalmos Brain tumor Meningitis Mucormycosis Trauma Recognizing the primary source of infection (i.e., facial cellulitis, middle ear, and sinus infections) and treating the primary source expeditiously is the best way to prevent cavernous sinus thrombosis. (wikipedia.org)
  • The most common signs of CST are related to anatomical structures affected within the cavernous sinus, notably cranial nerves III-VI, as well as symptoms resulting from impaired venous drainage from the orbit and eye. (wikipedia.org)
  • The fibers then leave the carotid plexus briefly to join the abducens nerve (cranial nerve [CN] VI) in the cavernous sinus and enter the orbit through the superior orbital fissure along with the ophthalmic branch (V1) of the trigeminal nerve (CN V) via the long ciliary nerves. (medscape.com)
  • Findings may include deformity of the internal carotid artery within the cavernous sinus, and an obvious signal hyperintensity within thrombosed vascular sinuses on all pulse sequences. (wikipedia.org)
  • The third-order pupillomotor fibers ascending along the internal carotid artery enter the cavernous sinus. (medscape.com)
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