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).
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.
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.
An irregularly shaped venous space in the dura mater at either side of the sphenoid bone.
The dilatation of the aortic wall behind each of the cusps of the aortic valve.
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.
One of the paired, but seldom symmetrical, air spaces located between the inner and outer compact layers of the FRONTAL BONE in the forehead.
Diseases affecting or involving the PARANASAL SINUSES and generally manifesting as inflammation, abscesses, cysts, or tumors.
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.
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.
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.
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.
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.
Tumors or cancer of the PARANASAL SINUSES.
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.
Tumors or cancer of the MAXILLARY SINUS. They represent the majority of paranasal neoplasms.
A hair-containing cyst or sinus, occurring chiefly in the coccygeal region.
The two large endothelium-lined venous channels that begin at the internal occipital protuberance at the back and lower part of the CRANIUM and travels laterally and forward ending in the internal jugular vein (JUGULAR VEINS). One of the transverse sinuses, usually the right one, is the continuation of the SUPERIOR SAGITTAL SINUS. The other transverse sinus is the continuation of the straight sinus.
The long large endothelium-lined venous channel on the top outer surface of the brain. It receives blood from a vein in the nasal cavity, runs backwards, and gradually increases in size as blood drains from veins of the brain and the DURA MATER. Near the lower back of the CRANIUM, the superior sagittal sinus deviates to one side (usually the right) and continues on as one of the TRANSVERSE SINUSES.
The small mass of modified cardiac muscle fibers located at the junction of the superior vena cava (VENA CAVA, SUPERIOR) and right atrium. Contraction impulses probably start in this node, spread over the atrium (HEART ATRIUM) and are then transmitted by the atrioventricular bundle (BUNDLE OF HIS) to the ventricle (HEART VENTRICLE).

Multiple dural arteriovenous shunts in a 5-year-old boy. (1/170)

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)

Variant arteriovenous fistula of the superior sagittal sinus--case report. (2/170)

A 57-year-old male presented with a rare variant of dural arteriovenous fistula, located in the wall of an unobstructed superior sagittal sinus. Drainage occurred through a cortical vein no longer connected to its parent sinus, which filled up a cluster of transmedullary running veins, one of which was the presumed site of hemorrhage. Arterial blood was supplied via the external carotid artery branches. This type of fistula seriously increases the risk of hemorrhage in the patient and therefore requires complete obliteration. Attempts to embolize the fistula failed. The draining vein was isolated and coagulated resulting in permanent occlusion of the fistula. The fistula probably developed through a process of thrombophlebitis and revascularization via arterioles of the vein rather than previous occlusion of the sinus.  (+info)

Cavernous sinus and inferior petrosal sinus flow signal on three-dimensional time-of-flight MR angiography. (3/170)

BACKGROUND AND PURPOSE: Venous flow signal in the cavernous sinus and inferior petrosal sinus has been shown on MR angiograms in patients with carotid cavernous fistula (CCF). We, however, identified flow signal in some patients without symptoms and signs of CCF. This review was performed to determine the frequency of such normal venous flow depiction at MR angiography. METHODS: Twenty-five 3D time-of-flight (TOF) MR angiograms obtained on two different imaging units (scanners A and B) were reviewed with attention to presence of venous flow signal in the cavernous sinus or inferior petrosal sinus or both. Twenty-five additional MR angiograms were reviewed in patients who had also had cerebral arteriography to document absence of CCF where venous MR angiographic signal was detected, as well as to gain insight into venous flow patterns that might contribute to MR angiographic venous flow signal. Differences in scanning technique parameters were reviewed. RESULTS: Nine (36%) of the 25 MR angiograms obtained on scanner A but only one (4%) of the 25 obtained on scanner B showed flow signal in the cavernous or inferior petrosal sinus or both in the absence of signs of CCF. On review of 25 patients who had both MR angiography and arteriography, three patients with venous signal at MR angiography failed to exhibit CCF at arteriography. CONCLUSION: Identification of normal cavernous sinus or inferior petrosal sinus venous signal on 3D TOF MR angiograms may occur frequently, and is probably dependent on technical factors that vary among scanners. The exact factors most responsible, however, were not elucidated by this preliminary review.  (+info)

Regions of interest in the venous sinuses as input functions for quantitative PET. (4/170)

As clinical PET becomes increasingly available, quantitative methods that are feasible in busy clinical settings are becoming necessary. We investigated the use of intracranial blood pools as sources of an input function for quantitative PET. METHODS: We studied 25 patients after the intravenous injection of [18F]6-fluoro-L-m-tyrosine and compared sampled blood time-activity curves with those obtained in small regions of interest (ROIs) defined in the blood pools visible in the PET images. Because of the comparatively large dimensions of the blood pool at the confluence of the superior sagittal, straight and transverse sinuses, a venous ROI input function was chosen for further analysis. We applied simple corrections to the ROI-derived time-activity curves, deriving expressions for partial volume, spillover and partition of tracer between plasma and red blood cells. The results of graphic and compartmental analysis using both sampled [Cs(t)] and ROI [Cr(t)] venous input functions for each patient were compared. We also used an analytic approach to examine possible differences between venous and arterial input functions in the cerebral circulation. RESULTS: Cr(t) peaked significantly earlier and higher than Cs(t) in this patient population, although the total integral under the curves did not differ significantly. We report some apparent differences in the results of modeling using the two input functions; however, neither the graphically determined influx constant, Ki, nor the model parameter that reflects presynaptic dopaminergic metabolism, k3, differed significantly between the two methods. The analytic results suggest that the venous ROI input function may be closer to the arterial supply of radiotracer to the brain than arterialized venous blood, at least in some patient populations. CONCLUSION: We present a simple method of obtaining an input function for PET that is applicable to a wide range of tracers and quantitative methods and is feasible for diagnostic PET imaging.  (+info)

Skull metastasis of Ewing's sarcoma--three case reports. (5/170)

Three cases of skull metastasis of Ewing's sarcoma were treated. The metastatic lesion was located at the midline of the skull above the superior sagittal sinus in all cases. Surgery was performed in two patients with solitary skull lesions involving short segments of the superior sagittal sinus without remarkable systemic metastasis, resulting in good outcome. The third patient had extensive, multiple tumors involving the superior sagittal sinus which could not be excised, and died due to intracranial hypertension. The surgical indication for skull metastasis of Ewing's sarcoma depends on the location and length of the involved superior sagittal sinus, and general condition.  (+info)

Absent vestibulo-ocular reflexes and acute supratentorial lesions. (6/170)

Loss of vestibulo-ocular reflexes occurred in two patients with acute supratentorial lesions who received therapeutic doses of anticonvulsant drugs. There was no clinical or angiographic evidence of focal brain-stem damage. Absence of vestibulo-ocular reflexes is attributed to a combination of acute cerebral damage and anticonvulsant drugs. The loss of these reflexes in patients with acute cerebral lesions cannot be interpreted as evidence of irreversible brain-stem injury.  (+info)

Scalp vein detected using internal carotid angiography that did not result in venous sinus compromise. (7/170)

We present an unusual case of a scalp vein detected by using angiography of the internal carotid artery. The vein arose from the superior sagittal sinus and drained into the deep posterior cervical vein via the parietal emissary vein. This scalp vein may be a collateral pathway for venous sinuses; however, the patient had no evidence of venous sinus occlusive disease or intracranial hypertension.  (+info)

Sigmoid sinus thrombosis after mild closed head injury in an infant: diagnosis by magnetic resonance imaging in the acute phase--case report. (8/170)

Intracranial sinus thrombosis following a mild closed head injury without a skull fracture or intracranial hematoma is extremely rare. A 23-month-old girl presented with vomiting and gait ataxia 1 day after occipital trauma. Computed tomography revealed a slightly increased density area in the region of the left sigmoid sinus. T1-weighted magnetic resonance (MR) imaging demonstrated an isointense area in the left sigmoid sinus and T2-weighted imaging showed a hyperintense area reflecting the characteristics of oxyhemoglobin. MR angiography and cerebral angiography indicated occlusion of the left sigmoid sinus. After 4 days of conservative treatment, her symptoms subsided completely. Follow-up MR angiography and cerebral angiography showed recanalization of the sigmoid sinus. The MR images and MR angiograms were useful for both early diagnosis and follow-up. Treatment should reflect the severity of individual cases, and early diagnosis will help achieve a good outcome.  (+info)

The emissary veins connect the extracranial venous system with the intracranial venous sinuses. They connect the veins outside the cranium to the venous sinuses inside the cranium. They drain from the scalp, through the skull, into the larger meningeal veins and dural venous sinuses. They are common in children. Emissary veins have an important role in selective cooling of the head. They also serve as routes where infections are carried into the cranial cavity from the extracranial veins to the intracranial veins. There are several types of emissary veins including posterior condyloid, mastoid, occipital and parietal emissary vein. There are also emissary veins passing through the foramen ovale, jugular foramen, foramen lacerum, and hypoglossal canal. Because the emissary veins are valveless, they are an important part in selective brain cooling through bidirectional flow of cooler blood from the evaporating surface of the head. In general, blood flow is from external to internal but the flow ...
A thrombosed dural sinus malformation (DSM) is a rare condition, the clinical features of which have not yet been completely characterized. Here, we describe the clinical course of a patient with a thrombosed DSM and discuss the outcomes in live birt
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. ...
Lec 20 -Gross Anatomy: Cranial Meninges, Dural Venous Sinuses and Cerebrospinal FluidCranial meninges, dural venous sinuses (cavernous sinus) and cerebrospinal fluid are shown in this dissection...
Intracranial multiple dural arteriovenous fistulas (MDAVFs) are rare lesions that are difficult to treat. The key factors involved in the development of MDAVFs remain unknown. At present, the majority of reports on intracranial MDAVFs are confined to case reports and small case series, and thus understanding of MDAVFs is limited. The current review assesses the available literature to date with the aim of reviewing the progress in research on intracranial MDAVFs. Intracranial MDAVFs may be divided into two types: Synchronous and metachronous. While the exact pathogenesis of MDAVFs is unknown, a number of possible mechanisms are considered relevant. The first is that MDAVFs develop following recanalization of a large sinus thrombosis that involves several sinuses. The second possibility is that a pre-existing DAVF may induce sinus thrombosis or venous hypertension, resulting in a new MDAVF. The third is that MDAVFs are caused by increased angiogenic activity, which may induce the development of ...
Condylar emissary vein is a vein connecting the suboccipital plexus of veins with the sigmoid sinus. Possible mode of transportation for disease into the cranium. ...
Looking for venous sinus? Find out information about venous sinus. cavity or hollow space in the body, usually filled with air or blood. In humans the paranasal sinuses, mucus-lined cavities in the bones of the face, are... Explanation of venous sinus
In cases of advanced-stage temporal bone carcinoma, both extensive resections and high-dose irradiation are recommended (6). Although the prognosis of a patient with a T4/stage 4 lesion is grim, survival is better when clear surgical margins can be achieved (5). When an individual situation is assessed, the justified use of radical surgery must be weighted against potential morbidities that may result from facial nerve or ICA resection or the need to sacrifice the dominant sigmoid sinus, as in the present case.. If a dural sinus is completely occluded because of tumor invasion, adequate venous collaterals have developed and the affected sinus can be excised without ensuing venous complications (7). If the affected sinus is still patent, however, the risk of sinus occlusion is high, especially in the posterior two-thirds of the superior sagittal sinus and the dominant transverse or sigmoid sinus; this situation entails the risk of intracranial hypertension and venous infarction (3, 4, 7). ...
Hello everyone, I am new here and came across these posts. I had/have the very same problem. when you bend over it feels like your head fills up. And I would get very bad vertigo spins. My left eye would also be very blurry. I made a eye appt and was told I have papilledema. I also had increased crainal pressure. I had to have a spinal tap to relieve that. I have what is called psudotumor. They believe I had a clot and for some reason lived to tell about it. I have a narrowing in my right transverse sinus ...
In this article, we shall consider the venous drainage of the CNS. We will discuss the veins of the brain, the dural venous sinuses, their drainage into the systemic circulation, and the venous drainage of the spinal cord.
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Venous sinus, in human anatomy, any of the channels of a branching complex sinus network that lies between layers of the dura mater, the outermost covering of the brain, and functions to collect oxygen-depleted blood. Unlike veins, these sinuses possess no muscular coat. Their lining is
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
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 ...
Most people dont think about their sinuses, but keeping your sinuses healthy can help you avoid many problems. Heres an ENTs guide to good sinus health.
I have fallen away from CPAP because of serious sinus drainage problems. Even with a couple hours use, my sinuses start to flow watery discharge in large volume. Goes into my chest, throat, etc. Cann
Physician reviewed Sudafed PE Sinus & Allergy patient information - includes Sudafed PE Sinus & Allergy description, dosage and directions.
Physician reviewed Comtrex Allergy Sinus patient information - includes Comtrex Allergy Sinus description, dosage and directions.
Welcome to the Motrin IB Sinus information hub. Featuring active ingredients, dosages, related medications, and Motrin IB Sinus forums.
Reader Question: Dog Sinus Congestion and Snoring I adopted a 1 1/2 yr old female Pomeranian 4 days ago. They said she was picked up as a stray with no
NYQUIL SINUS prescription and dosage sizes information for physicians and healthcare professionals. Pharmacology, adverse reactions, warnings and side effects.
Dogs sinuses: dogs have sinuses too and this means they are also prone to developing their own sets of sinus problems. Read more.
Now that you recognize and understand your symptoms, you should realize that you are not alone. Many people suffer from CAID, most of whom never seek proper medical treatment. Others will treat some
Aspartate Aminotransferase (AST/GOT) Activity Assay Kit(谷草转氨酶活性测定试剂盒)(ab105135)比色法;敏感度大于10 mU.检测各种样本中谷草转氨酶的活性。
TY - JOUR. T1 - Giant arachnoid granulation with a thrombosed dural arteriovenous fistula. AU - Karegowda, Lakshmikanth Halegubbi. AU - Rajagopal, Kadavigere. AU - Krishnamurthy, Suresh Kanase. AU - Lakshmana, Shivarajkumar. PY - 2018/1/1. Y1 - 2018/1/1. N2 - Arachnoid granulations are common incidentally detected small dural lesions which are usually asymptomatic and follow cerebrospinal fluid density/signal intensity on CT/MRI. Such lesions reaching a size of more than 1 cm are termed as giant arachnoid granulations (GAGs) which have been previously reported to cause venous hypertension and headaches. We report a case of GAG involving the proximal half of the superior sagittal sinus in a 45-year-old male patient which was associated with left temporal thrombosed dural arteriovenous fistula (AVF) whose thrombosed draining veins were seen converging towards the site of GAG. The patient presented with three episodes of generalised tonic-clonic seizures and improved with conservative treatment. No ...
Planet Ayurveda offer CVST Care Pack for the treatment of Cerebral venous sinus thrombosis naturally. Cerebral venous sinus thrombosis is a rare complication of ulcerative colitis.
Cerebral venous sinus thrombosis (CVST) is the presence of acute thrombosis (a blood clot) in the dural venous sinuses, which drain blood from the brain. Symptoms may include headache, abnormal vision, any of the symptoms of stroke such as weakness of the face and limbs on one side of the body, and seizures. The diagnosis is usually by computed tomography (CT/CAT scan) or magnetic resonance imaging (MRI) employing radiocontrast to demonstrate obstruction of the venous sinuses by thrombus. Treatment is with anticoagulants (medication that suppresses blood clotting), and rarely thrombolysis (enzymatic destruction of the blood clot). Given that there is usually an underlying cause for the disease, tests may be performed to look for these. The disease may be complicated by raised intracranial pressure, which may warrant surgical intervention such as the placement of a shunt. Nine in ten people with sinus thrombosis have a headache; this tends to worsen over the period of several days, but may also ...
Three prospective and more than ten retrospective research have examined the chance of organ malformation in over four hundred instances of first trimester publicity to tricyclic antidepressants of TCAs. The straightforward answer is not any. I dont know what to do…. At HealthAim, we provide you with pyogenic granuloma and pregnancy most recent information and trends in health and wellness. London: RCOG press. Its onerous to pinpoint precisely when your egg turns into fertilized, but the date of your final cycle is a more accurate starting point. By the end of the second month, your baby, now a fetusis about 2. With few cerebral venous sinus thrombosis after pregnancy, CD4 cell counts decline progressively throughout cerebral venous sinus thrombosis after pregnancy asymptomatic interval, at a median fee of roughly 50 cellsLy. Do you thrash round in bed or kick and punch if you are deeply asleep. Emotions of inadequacy are creeping in and the individual you was is fading. This pillows with ...
Intracranial complications of sinusitis are rare but life threatening. We present a case of a 17-year-old woman with sinusitis who deteriorated over the course of 12 days from subdural empyema and global purulent cerebral venous sinus thrombosis. The patient was managed with surgery and mechanical thrombectomy utilizing a novel stent anchor with mobile aspiration technique, in which a Trevo stent retriever (Stryker) was anchored in the superior sagittal sinus (SSS) while a 5 MAX ACE reperfusion catheter (Penumbra) was passed back and forth from the SSS to the sigmoid sinus with resultant dramatic improvement in venous outflow. The patient was extubated on postoperative day 3 and was discharged with minimal lower extremity weakness on postoperative day 11. This is the first report using the Trevo stent retriever for sinus thrombosis. It is important to keep these rare complications in mind when evaluating patients with oral and facial infections. ...
Cerebral venous sinus thrombosis (CVST) occurs when a blood clot forms in the brains venous sinuses. This prevents blood from draining out of the brain. As a result, blood cells may break and leak blood into the brain tissues, forming a hemorrhage. This chain of events is part of a stroke that can occur in adults and children of all ages.
Cerebral venous sinus thrombosis (CVST) occurs when a blood clot forms in the brains venous sinuses. This prevents blood from draining out of the brain. As a result, blood cells may break and leak blood into the brain tissues, forming a hemorrhage. This chain of events is part of a stroke that can occur in adults and children of all ages.
Cerebral venous sinus thrombosis (CVST) is a rare clinicopathological entity. The incidence of CVST in children and neonates has been reported to be as high as 7 cases per million people, whereas in adults the incidence is 3-4 cases per million. The predisposing factors to this condition are mainly genetic and acquired prothrombotic states and infection. The clinical picture of CVST is nonspecific, highly variable, and can mimic several other clinical conditions. Diagnosis of CVST is established with the implementation of neuroimaging studies, especially MR imaging and venography. Identification and elimination of the underlying cause, anticoagulation, proper management of intracranial hypertension, and anticonvulsant prophylaxis constitute cornerstones of CVST treatment. Newer treatment strategies such as endovascular thrombolysis and decompressive craniectomy have been recently used in the treatment of patients with CVST with variable success rates. Further clinical research must be performed to
A 52-year-old man with a history of factor V Leiden thrombophilia, persistent headaches and papilloedema presented with worsening vision and confusion. MRI and MR angiography of the brain at the time of this presentation showed findings concerning for transverse sinus thrombosis and an associated dural arteriovenous fistula. Dural venous sinus thrombosis can lead to the formation of a dural arteriovenous fistula, which must be considered in the differential diagnosis for intracranial hypertension in patients with thrombophilia. ...
Cerebral venous sinus thrombosis (CVST) usually is taken care of by medical management or neuro-interventional vascular techniques. Some cases of CVST may take a malignant course if the intracranial pressure increases excessively. This increase in pressure is because of oedema in brain tissue due to impediment in venous return and/or intracerebral haemorrhage. Neurosurgical experience has shown remarkable recovery in these moribund patients if appropriate surgical intervention is done within reasonable time. Emergent decompressive craniotomy or other neurosurgical interventions are the only appropriate treatment in these malignant forms of CVST to prevent mortality and severe morbidity.
Cerebral venous sinus thrombosis in children is increasingly recognized as diagnostic tools and clinical awareness has improved. It is a multifactorial disease where prothrombotic risk factors and predisposing clinical conditions usually in combination constitute the underlying etiology. Clinical features range from headache, seizures to comatose state. Although symptomatic treatment involving control of infections, seizures and intracranial hypertension is uniform, use of anticoagulation and local thrombolytic therapy is still controversial. Morbidity and mortality can be significant and long-term neurological sequelae include developmental delay, sensorimotor and visual deficits and epilepsy.
Several studies have reported significantly increased rates of venous and arterial thromboses in patients with COVID-19 despite administration of standard prophylaxis, particularly among those with severe disease requiring intensive care support.3-5 The presence of venous thromboembolism has been associated with an increased risk of death.4 5 Our centre noted 13 imaging-confirmed thromboembolic events in 12 of a total 352 (3.4%) consecutive patients requiring hospital admission for confirmed COVID-19 (March 9, 2020 to April 26, 2020). This compares with a reported incidence of 2% in H1N1 influenza.6 To date, however, cerebral venous sinus thrombosis has only rarely been reported in the context of COVID-19.7 8 The mechanism responsible for increased risk of thrombosis in COVID-19 is now beginning to be understood.9 10 ACE 2 receptor facilitates cell entry of SARS-CoV-2,11 and is expressed on endothelial cells in multiple organ systems.12 Viral infection of endothelial cells with associated ...
Dural venous sinus thrombosis is a rare and potentially devastating disease. Several predisposing factors exist, including oral contraceptive therapy and colitis. First-line therapy consists of systemic anticoagulation. If first-line therapies fail, more aggressive endovascular therapies may be performed. We report our initial experience with the Solitaire FR device for treatment of refractory symptomatic dural venous sinus thrombosis.. ...
Central venous sinus thrombosis (CVT) and venous cerebral infarction are important differentials for the causes of headache or seizure in the young person, particularly in the young woman who is/has recently been pregnant. It is probably the most rare form of stroke, but - when it happens - the patient usually will end up in ICU, and the critical care trainee will probably see more of this than any other specialty. This has come up in Question 26 from the second paper of 2015. Dural sinus thrombosis in that question was associated with pregnancy (as typically they are) and the question could easily be shoved into the O&G section, but the specific information requested from the candidates (outline the management priorities, etc) was more neurological/neurosurgical in nature.
TY - JOUR. T1 - Treatment of dural sinus thrombosis by urokinase infusion. AU - Smith, T. P.. AU - Higashida, R. T.. AU - Barnwell, S. L.. AU - Halbach, V. V.. AU - Dowd, C. F.. AU - Fraser, K. W.. AU - Teitelbaum, G. P.. AU - Hieshima, G. B.. PY - 1994. Y1 - 1994. N2 - PURPOSE: To gain a preliminary understanding of the role of thrombolytic therapy for the thrombosed dural sinus, we retrospectively reviewed our initial experience. METHODS: Seven patients, ages 25 to 71, who presented with symptomatic dural sinus thrombosis and who failed a trial of medical therapy were treated with direct infusion of urokinase into the thrombosed sinus. Patients received urokinase doses ranging from 20 000 to 150 000 U/h with a mean infusion time of 163 hours (range 88 to 244 hours). RESULTS: Patency of the affected dural sinus was achieved with antegrade flow in all patients. Six patients either improved neurologically over their prethrombolysis state or were healthy after thrombolysis; one of them required ...
CT: hyperdense, empty delta sign = clot in transverse sinus (dural vv become engorged and enhance while the inside of the sinus does not enhance), flame IPH (if venous stasis 2-2 DVST ...
In many intracranial disease states, monitoring of intracranial pressure (ICP) is essential to evaluate response to the therapeutic measures as well as estimation of prognosis. Although, direct estimation of ICP is reliable, it is invasive and not possible in all patients. Transcranial Doppler (TCD) ultrasonography is a bedside and noninvasive technique that provides reliable and real-time information about cerebral hemodynamics. We present a case of extensive and progressive cerebral venous sinus thrombosis in which TCD served as an excellent tool for monitoring ICP and the serial observations correlated closely with clinical status and ophthalmological findings.
The diagnosis of CVST has traditionally been made with conventional angiography (DSA).13,19 More recently, DSA has been superseded by MR imaging techniques as the method of choice. MR imaging with MR venography is now commonly considered the noninvasive gold standard in diagnosing thrombosis of the cerebral venous sinuses2,5,7,8,20-23 and also dominates the diagnostic arms in large international trials.6 However, because CT is still the technique of choice to rule out intracranial hemorrhage in most institutions, it is tempting to assess a CVST by using the same technique. Therefore, we propose MDCTA as an alternative diagnostic measure in CVST, which is faster, more widely accessible, and more cost-effective than MR imaging.. With the development of helical CT technology, CTA offered a new imaging technique to visualize the cerebral vascular circulation. CTA allowed the visualization of the cerebral venous structures10,11,24-27 and has been shown to have a high sensitivity for depicting the ...
Venous thrombosis may occur in any or all of the following venous structures: the venous sinuses, superficial cortical veins, or the deep venous system. Typically, superficial cortical vein thrombosis is only seen in the seen in the setting of venous sinus thrombosis, and thrombosis of the deep venous system is relatively rare (albeit very serious). Approximately 1% of all strokes occur secondary to venous sinus thrombosis, and the most frequently thrombosed sinuses are the superior sagittal sinus, followed by the transverse, sigmoid and cavernous sinuses. There are numerous conditions associated with venous sinus thromboses and broadly speaking, these tend to be divided into septic or non-septic etiologies. One fourth of cases are of unknown cause. It is common for hemorrhage to be present within areas of venous infarction, whereas it is relatively uncommon to occur with arterial occlusion and infarction. In general, hemorrhagic cerebral infarctions are classified as primary or secondary with ...
CVST is a rare disease with a potentially fatal outcome. During recent decades, its incidence has markedly increased, which may be attributed to advances in imaging techniques (15). However, CVST may not be timely diagnosed, as its clinical presentations are atypical and non-specific (2). Non-contrast CT scan is only able to reveal indirect signs of CVST and has low sensitivity and specificity (16). A number of the patients in the present study were not accurately diagnosed with CVST at their primary hospital; they were initially misdiagnosed, e.g. with postpartum reaction, fatigue or simple diarrhea, which led to rapid aggravation of the symptoms, ICH and life-threatening complications due to the absence of specific treatment. The timely and correct treatment for SH-CVST remains controversial. Systemically administered anticoagulation with heparin (unfractionated or LMWH) is the standard first-line treatment for CVST, even in patients with an ICH at baseline (17). However, a subset of patients ...
Cranial dural arteriovenous fistulae have been classified into high- and low-risk lesions mainly based on the pattern of venous drainage. Those with leptomeningeal venous drainage carry a higher risk of an aggressive clinical presentation. Recently, it has been proposed that the clinical presentation should be considered as an additional independent factor determining the clinical course of these lesions. However, dural shunts with leptomeningeal venous drainage include a very wide spectrum of inhomogeneous lesions. In the current study, we correlated the clinical presentation of 107 consecutive patients harboring cranial dural arteriovenous shunts with leptomeningeal venous drainage, with their distinct anatomic and angiographic features categorized into eight groups based on the DES (Directness and Exclusivity of leptomeningeal venous drainage and features of venous Strain) concept. We found that among these groups, there are significant angioarchitectural differences, which are reflected by ...
Занятие за границей: первопричины да перспективы Во сегодняшний день про работодателя не так важен диплом, который заверяет об полученном образовании, а теоретические да утилитарные навыки, который Вы смогли купить в ходе обучения. Как не прискорбно, Университеты в нашей стране как правило никак не готовы дать те знания да искусства, что требует настоящий рабочий рынок. Оттого ...
We included two small trials involving 79 patients. One trial (20 patients) examined the efficacy of intravenous, adjusted dose unfractionated heparin. The other trial (59 patients) examined high dose, body weight adjusted, subcutaneous, low-molecular weight heparin (nadroparin). Anticoagulant therapy was associated with a pooled relative risk of death of 0.33 (95% confidence interval (CI) 0.08 to 1.21) and of death or dependency of 0.46 (95% CI 0.16 to 1.31). The absolute reduction in the risk of death or dependency was 13% (95% CI 30% to -3%). No new symptomatic intracerebral haemorrhages were observed. One major gastro-intestinal haemorrhage occurred after anticoagulant treatment. Two control patients (placebo) had a diagnosis of probable pulmonary embolism (one fatal).. ...
Increased recognition of the thrombogenic potential of hormonal vaginal rings may promote earlier venous imaging and result in better clinical outcomes.
Infobox Vein , Name = Cerebellar veins , Latin = venae cerebelli superiores , GraySubject = 170 , GrayPage = 653 , Image = Gray704.png , Caption = Sagittal section of the cerebellum, near the junction of the vermis with the hemisphere. (Veins not visible, but regions can be seen.) , Image2 = CerebellumArteries.jpg , Caption2 = Corresponding arterial circulation of the cerebellum (SCA). , DrainsFrom = [[cerebellum]] , Source = , DrainsTo = [[dural venous sinuses]] , Artery = [[superior cerebellar artery]] , MeshName = , MeshNumber = , DorlandsPre = v_05 , DorlandsSuf = 12851858 , }} {{CMG}} The superior cerebellar veins pass partly forward and medialward, across the superior [[vermis]], to end in the [[straight sinus]] and the [[internal cerebral veins]], partly lateralward to the [[Transverse sinuses,transverse]] and [[superior petrosal sinus]]es. {{Grays}} {{VeinsHeadNeck}} [[Category:Veins]] [[Category:Anatomy]] {{WikiDoc Help Menu}} {{WikiDoc Sources ...
Sigmoid sinus thrombosis is disorder or condition caused by suppurative thrombophlebitis. Learn about sigmoid sinus thrombosis causes, symptoms, diagnostic tests, treatment and prevention.
Looking for lateral sinus? Find out information about lateral sinus. cavity or hollow space in the body, usually filled with air or blood. In humans the paranasal sinuses, mucus-lined cavities in the bones of the face, are... Explanation of lateral sinus
OBJECTIVE: Dural sinus thrombosis (DST) is an uncommon cause of stroke. The safest and most effective therapy for DST has not been conclusively identified.. METHODS: A retrospective chart review of data for 31 patients who were treated for DST at our institution between 1992 and 2001 was performed. Four treatment strategies were identified, i.e., 1). medical observation only, 2). systemic anticoagulation (AC) therapy with heparin, 3). endovascular chemical thrombolysis with urokinase or tissue plasminogen activator and concurrent systemic AC therapy, and 4). mechanical endovascular clot thrombolysis with concurrent systemic AC therapy. Complications and clinical outcomes were assessed for each group.. RESULTS: Patients treated solely with medical observation fared the worst; four of five patients experienced intracranial hemorrhagic complications, and only two of five exhibited clinical improvement. Patients who received systemic AC therapy experienced no hemorrhagic complications, even when ...
A case of sinus pericranii communicating with the right transverse sinus is reported. The radiographic findings on CT, angiography, and magnetic resonance imaging are presented.
THE headaches that accompany certain intracranial pathologies (such as meningitis, subarachnoid haemorrhage and tumour) have been considered to result from mechanical or chemical stimulation of pain-sensitive structures of the intracranial meninges1,2. Although the recurrent headache of migraine is of unknown origin and is not accompanied by an identifiable pathology, it shares with intracranial headaches features that suggest an exaggerated intracranial mechanosensitivity (worsening of the pain by coughing, breath-holding or sudden head movement1,3). One possible basis for such symptoms would be a sensitization of meningeal afferents to mechanical stimuli. Previous studies of neuronal responses to meningeal stimulation have focused primarily on cells in the central portion of the trigeminal pathway, and have not investigated the possible occurrence of sensitization4-12. We have recorded the activity of primary afferent neurons in the rat trigeminal ganglion that innervate the dural venous sinuses.
By Haruna Gimba. Thirty cases of rare blood clotting have been recorded in the United Kingdom among more than 18 million people who have had the AstraZeneca vaccination, the national medicines regulator said.. The benefits of the vaccines against COVID-19 continue to outweigh any risks, the Medicines and Healthcare products Regulatory Agency (MHRA) said, urging the public to keep taking the vaccine.. Up to March 24, 22 reports of cerebral venous sinus thrombosis (CVST) and eight other thrombosis events with low platelets were logged.. The risk of having this specific type of blood clot is very small, the agency noted.. The number and nature of suspected adverse reactions reported so far are not unusual in comparison to other types of routinely used vaccines, the MHRA online statement said.. However, there were no such reports for the Pfizer/BioNTech vaccine.. The agency said vaccination was the most efficient way to reduce the number of deaths and serious illness from coronavirus.. The ...
CDC Press Release issued today, April 13, 2021:. As of April 12, more than 6.8 million doses of the Johnson & Johnson (Janssen ) vaccine have been administered in the U.S. CDC and FDA are reviewing data involving six reported U.S. cases of a rare and severe type of blood clot in individuals after receiving the J&J vaccine. In these cases, a type of blood clot called cerebral venous sinus thrombosis (CVST) was seen in combination with low levels of blood platelets (thrombocytopenia). All six cases occurred among women between the ages of 18 and 48, and symptoms occurred 6 to 13 days after vaccination. Treatment of this specific type of blood clot is different from the treatment that might typically be administered. Usually, an anticoagulant drug called heparin is used to treat blood clots. In this setting, administration of heparin may be dangerous, and alternative treatments need to be given.. CDC will convene a meeting of the Advisory Committee on Immunization Practices (ACIP) on Wednesday to ...
Hi, I have recently been diagnosed with transverse sinus stenosis. I seen my neuro yesterday & he has suggested that i have a stent put in to open up the vessel! He also tells me that this will most li...
Our study shows important differences between women and men with CVST and between women with and without GSRF, mostly the use of oral contraceptives. The most conspicuous finding is the far better prognosis of women, which is exclusively caused by a substantially better outcome in female patients with GSRF. Previous retrospective studies reported that CVST in pregnant women has a relatively favorable prognosis.15,17 These results are now confirmed in a large, prospective cohort study and extended to women with all GSRF.. The ISCVT is, to date, the largest prospective cohort study on CVST.3 Participating centers included hospitals from all over the world and investigators committed themselves to include data on consecutive patients. Furthermore, CVST was confirmed in all patients using standard radiological techniques and completeness of follow-up data was high. For these reasons, the data presented in this study are likely to be representative of CVST in general. It must be noted, however, that ...
The embolisms reported after J&J immunization-called cerebral venous sinus thromboses-are in an uncommon class. A really comparable clotting issue has actually been reported after injections of AstraZenecas COVID-19 vaccine, which ...
Shows base and right side views of arteries of the brain as well as venous sinuses. Illustrates cerebral hemispheres, lobes of the brain, cross-section of meninges & venous sinuses, typical nerve cell, typical glial cells, and circulation of cerebrospinal fluid.
Shows base and right side views of arteries of the brain as well as venous sinuses. Illustrates cerebral hemispheres, lobes of the brain, cross-section of meninges & venous sinuses, typical nerve cell, typical glial cells, and circulation of cerebrospinal fluid.
Improved method and system for accessing subterranean deposits from the surface that substantially eliminates or reduces the disadvantages and problems associated with previous systems and methods. In particular, the present invention provides an articulated well with a drainage pattern that intersects a horizontal cavity well. The drainage patterns provide access to a large subterranean area from the surface while the vertical cavity well allows entrained water, hydrocarbons, and other deposits to be efficiently removed and/or produced.
chronic sinus - MedHelps chronic sinus Center for Information, Symptoms, Resources, Treatments and Tools for chronic sinus. Find chronic sinus information, treatments for chronic sinus and chronic sinus symptoms.
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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 ...
Damage to cranial nerves in the cavernous sinus leads to diplopia. Cranial nerve VI is often the first affected, leading to ... If cranial nerve V-1 is damaged, the patient will have pain and altered sensation over the front and top of the head. Horner's ... Of all cranial meningiomas, about 20% of them are in the sphenoid wing. In some cases, deletions involving chromosome 22 are ... Possible indications for intervention would be a rapid increase in growth or involvement of cranial nerves. Untreated, one ...
These typically arise (along with osteomyelitis of a cranial bone) from infections of the ear or paranasal sinuses. They rarely ... A cranial epidural abscess involves pus and granulation tissue accumulation in between the dura mater and cranial bone. ... Symptoms include pain at the forehead or ear, pus draining from the ear or sinuses, tenderness overlying the infectious site, ... can be caused by distant infection or an infected cerebral venous sinus thrombosis. Staphylococcus aureus is the most common ...
Zygomycosis of the sinuses can extend from the sinuses into the orbit and the cranial vault, leading to rhinocerebral ... Zygomycosis usually is a disease of the skin, but can also occur in the sinuses or gastrointestinal tract. In humans it is most ...
Some things such as cranial base sclerosis and nasal sinuses obstruction can be seen during the beginning of the child's life. ... The condition is characterized abnormal facial features, impairment of cranial nerves, and malformation of the long bones in ... The only treatment for this disorder is surgery to reduce the compression of cranial nerves and spinal cord. However, bone ...
"Management of a Large Frontoethmoid Osteoma with Sinus Cranialization and Cranial Bone Graft Reconstruction". International ... Osteoma of the frontal sinus seen on x-ray Osteoma of the frontal sinus on CT Osteoma Osteosclerosis Familial adenomatous ... Osteoma represents the most common benign neoplasm of the nose and paranasal sinuses. The cause of osteomata is uncertain, but ...
A complex dural-venous variation in the posterior cranial fossa: a triplicate falx cerebelli and an aberrant venous sinus. ... A rare variation of the posterior cranial fossa: duplicated falx cerebelli, occipital venous sinus, and internal occipital ... As dural venous sinuses are concurrent with the development of dural folds, duplication of the falx cerebelli is usually ... Shoja MM, Tubbs RS, Khaki AA, Shokouhi G. A rare variation of the posterior cranial fossa: duplicated falx cerebelli, occipital ...
... and subsequent paralysis of cranial nerves which course through the cavernous sinus. The pterygoid plexus of veins becomes the ... Due to its communication with the cavernous sinus, infection of the superficial face may spread to the cavernous sinus, causing ... it also communicates with the cavernous sinus, by branches through the foramen Vesalii, foramen ovale, and foramen lacerum. ... cavernous sinus thrombosis. Complications may include edema of the eyelids, conjunctivae of the eyes, ...
Defining cranial traits of this genus include low, broad zygomatics, straight alveolar process and large maxillary sinus. ...
It surrounds and supports the dural sinuses (also called dural venous sinuses, cerebral sinuses, or cranial sinuses) and ... This depends upon the area of the cranial cavity: in the anterior cranial fossa the anterior meningeal artery (branch from the ... Where they separate, the gap between them is called a dural venous sinus. These sinuses drain blood and cerebrospinal fluid ( ... Cranial dura mater has two layers called lamellae, a superficial layer (also called the periosteal layer), which serves as the ...
The cavernous sinus lies within the cranial cavity, between layers of the meninges and is a major conduit of venous drainage ... If the cavernous sinus is infected, it can cause the blood within the sinus to clot resulting in a cavernous sinus thrombosis. ... Inside the cavernous sinus, constriction of the following cranial nerves (CN) can be found: CN III (oculomotor nerve), CN IV ( ... In 1937, a study found that 61% of the cases of cavernous sinus thrombosis were the result of furuncles on the upper part of ...
This artery supplies the posterior ethmoidal air sinuses, the dura mater of the anterior cranial fossa, and the upper part of ...
... of a facial fracture tears the meninges and causes the venous sinuses to bleed into the arachnoid villi and the cranial sinuses ... They are most often associated with fractures of the anterior cranial fossa. Raccoon eyes may also be a sign of disseminated ...
Once the infection has spread to the cavernous sinus, it can compress important nerves (cranial nerves III, IV, V1, V2, and VI ... Rarely, the infection will spread upwards into the maxillary sinus and cause a sinusitis. In the lower jaw (mandible), the ... The three main, albeit rare, complications of mouth infections are osteomyelitis, cavernous sinus thrombosis, and deep neck ... Other rare but dangerous complications include osteomyelitis, cavernous sinus thrombosis, and deep neck space infection. Dental ...
They then enter the middle cranial fossa above foramen lacerum, travel through the cavernous sinus in the middle cranial fossa ...
"In addition to confirming that the vertebral venous plexus is a direct continuation of the cranial venous sinuses, our study ... the superior longitudinal sinus, transverse sinus as well as other dural and cerebral veins" following injection of radiopaque ... Eur Radiol, 2005 Arnautovic, K.I., et al., The suboccipital cavernous sinus. J Neurosurg, 1997. 86(2): p. 252-62 Batson, O.V., ... 112: p. 138-149 Anderson, R., Diodrast studies of the vertebral and cranial venous systems to show their probable role in ...
Ear Diseases and Cranial Base Surgery Unit Nose and Sinus Diseases Surgery (including endoscopic) Throat, Face, and Neck ...
A pituitary tumour may also extend into the cavernous sinus, compressing the oculuomotor nerve (III), trochlear nerve (IV) and ... Cranial nerve mnemonics Standring, Susan; Borley, Neil R. (2008). "Overview of cranial nerves and cranial nerve nuclei". Gray's ... Some considered there to be thirteen pairs of cranial nerves, including cranial nerve zero. The numbering of the cranial nerves ... The cranial nerves in the horse. Ventral view of a sheep's brain. The exits of the various cranial nerves are marked with red. ...
Cranial Nerves. Yale School of Medicine. Archived from the original on 2016-03-03. CS1 maint: discouraged parameter (link) ... It carries impulses from the baroreceptors in the carotid sinus to the vasomotor center in the brainstem (to help maintain a ... The carotid branch of the glossopharyngeal nerve (carotid sinus nerve or Hering's nerve) is a small branch of the ... and then divides in the angle of the bifurcation of the common carotid artery to innervate the carotid body and carotid sinus. ...
The dural venous sinuses (also called dural sinuses, cerebral sinuses, or cranial sinuses) are venous channels found between ... within the dural sinuses. Other common causes of dural sinus thrombosis include tracking of infection through the ophthalmic ... The sinuses at the base of the skull. Kiernan, John A. (2005). Barr's The Human Nervous System: An Anatomical Viewpoint. ... While rare, dural sinus thrombosis may lead to hemorrhagic infarction or cerebral oedema with serious consequences including ...
... may refer to: Sinus (anatomy), a sac or cavity in any organ or tissue Paranasal sinuses, air cavities in the cranial ... Sinus Magnus, Sinus Flanaticus, etc.) Sine, a trigonometric math function (Latin sinus) Sinus Medii, a small lunar mare Sinus ... developed from the sinus venosus Sinus (Chalcidice), a town of ancient Chalcidice, Greece Sinus, gulf or bay in Latin, used in ... a vein collecting blood from the heart Sinus venosus, a cavity in the heart of embryos Sinus venarum, a part of the wall of the ...
... including some cranial nerves and their branches, also pass through the sinus. Structures within the outer (lateral) wall of ... Oblique section through the cavernous sinus. Veins of orbit. Cavernous sinus Cavernous sinus thrombosis Dural venous sinuses ... The cavernous sinus is one of the dural venous sinuses of the head. It is a network of veins that sit in a cavity, ... The cavernous sinus within the human head is one of the dural venous sinuses creating a cavity called the lateral sellar ...
... is an uncommon form of cranial or spinal dysraphism. It occurs in 1 in 2500 live births. It occurs as a ... Congenital dermal sinus is a tract from the surface layer of the skin, through the deeper tissues into the cranial or spinal ... Congenital dermal sinus is often diagnosed in infants and children. Early diagnosis is important in congenital dermal sinus, so ... Congenital dermal sinus may form at any point along the midline of the neuraxis, however, the majority form in the lumbar and ...
... is a groove in the posterior cranial fossa. Sigmoid sinus Cancer Web: Sigmoid Sulcus http://ect. ...
branches to ethmoid air cells and frontal sinus meningeal branch (supplies some dura mater of anterior cranial fossa, has been ... It then travels through the anterior ethmoidal canal and gives branches which supply the frontal sinus and anterior and middle ... Following which, it enters the anterior cranial fossa where it bifurcates into a meningeal branch and nasal branch. The nasal ...
Cranial Nerves IX (Glossopharyngeal) and X (Vagus)", Textbook of Clinical Neurology (Third Edition), Philadelphia: W.B. ... Massage of the carotid sinus, carotid sinus massage is used to diagnose carotid sinus syncope and is sometimes useful for ... a condition known as carotid sinus hypersensitivity, carotid sinus syndrome or carotid sinus syncope, in which manual ... The carotid sinus baroreceptors are innervated by the carotid sinus nerve, which is a branch of the glossopharyngeal nerve (CN ...
Invasion to the cranial cavity may lead to headaches, nerve damage, and cerebrospinal fluid leak. Cigarettes smoking is ... During the progress of the cancer, the overall signs and symptoms could be sinus pressure and blocked sinus, sinus areas pain ... Head and neck cancer Paranasal sinus Nasal cavity National Cancer Institute (2019). Paranasal Sinus and Nasal Cavity Cancer ... Paranasal sinus and nasal cavity cancer is a cancer that is caused by the appearance and invasion of malignant cells into the ...
long, which passes forward along the lateral wall of the cavernous sinus, below the oculomotor and trochlear nerves; just ... dura mater in the anterior cranial fossa, superior parts of the tentorium cerebelli, upper eyelid, dorsum of the nose, and ... Skull: Orbital floor, maxillary sinus, upper teeth, nasal cavity, and palate, cheekbone. Nerves of the orbit. Seen from above. ... Skull: Roof of orbit, frontal, ethmoid, and possibly sphenoid sinuses. Eye: The eye itself (all the intraocular structures such ...
... peripheral and cranial nerves, the spinal canal, pre-sacral region, nasopharyngeal region, para-nasal sinuses and numerous ... The fact that EMH frequently occurs in the red pulp, is supported by current data that suggests that splenic sinus endothelial ... Studies have show that CXCL12 localizes in the sinus endothelial cells of the red pulp in EMH-positive spleens; whereas, CXCL12 ... peripheral and cranial nerves, and the spinal canal. During the postnatal period, the spleen is becomes a frequent site of EMH ...
The nuclei of other cranial nerves generally affect ipsilateral structures (for example, the optic nerves - cranial nerves II ... It runs on the outer wall of the cavernous sinus. Finally, it enters the orbit through the superior orbital fissure and ... Cranial Nerves: Anatomy and Clinical Comments. Decker, 1998 Dura mater and its processes exposed by removing part of the right ... The trochlear nerve is unique among the cranial nerves in several respects: It is the smallest nerve in terms of the number of ...
The optic canal contains the (cranial nerve II) and the ophthalmic artery, and sits at the junction of the sphenoid sinus with ... The inferior orbital fissure lies inferior and lateral to the ocular globe at the lateral wall of the maxillary sinus. It is ... In addition, there is the optic canal, which contains the optic nerve, or cranial nerve II, and is formed entirely by the ... It is a major pathway for intracranial communication, containing cranial nerves III, IV, VI which control eye movement via the ...
The whale ear is acoustically isolated from the skull by air-filled sinus pockets, which allow for greater directional hearing ... "Cranial asymmetry in Eocene archaeocete whales and the evolution of directional hearing in water". Proceedings of the National ...
Graciela Piñeiro, Jorge Ferigolo, Alejandro Ramos and Michel Laurin (2012). "Cranial morphology of the Early Permian mesosaurid ... The main structures of the heart are the sinus venosus, the pacemaker, the left atrium, the right atruim, the atrioventricular ... There are twelve pairs of cranial nerves.[108] Due to their short cochlea, reptiles use electrical tuning to expand their range ...
... cerebral venous sinus thrombosis). Nonpenetrating and penetrating cranial trauma can also be common causes of intracerebral ...
Pneumatization of the skull (such as paranasal sinuses) is found in both synapsids and archosaurs, but postcranial ... From about 1870 onwards scientists have generally agreed that the post-cranial skeletons of many dinosaurs contained many air- ... 3 cranial thoracal air sac, 4 caudal thoracal air sac, 5 abdominal air sac (5' diverticulus into pelvic girdle), 6 lung, 7 ...
Morimitsu, T; Kawano, H; Torihara, K; Kato, E; Koono, M (1992). "Histopathology of eighth cranial nerve of mass stranded ... Vaquita (P. sinus). *Burmeister's porpoise (P. spinipinnis). Phocoenoides. *Dall's porpoise (P. dalli) ... least one case report of strandings in Japan's Goto Islands has been associated with parasitic neuropathy of the eighth cranial ...
... pulmonary hypoplasia and cranial anomalies related to the oligohydramnios.[clarification needed] Oligohydramnios is the ...
Taste messages are sent via these cranial nerves to the brain. The brain can distinguish between the chemical qualities of the ... Anal sinuses. *Pectinate line. *Internal anal sphincter. *Intersphincteric groove. *External anal sphincter ...
"Penggunaan Trans Cranial Doppler untuk Deteksi Perubahan Hemodinamik Serebral pada Pasien Kritis". Diakses tanggal 3 April 2015 ... cerebral venous sinus thrombosis; stroke saat kehamilan, stroke akibat penggunaan hormon pasca menopause, penggunaan senyawa ... Intra-cranial stenting yang diterapkan pada gejala penyumbatan intracranial arterial stenosis, boleh dikatakan sukses ...
The coronary arteries start in the right and left aortic sinus and provide blood to the heart muscle in a similar fashion to ... and divided into a cranial, middle, and caudal sections by large veins.[61] The caudal section is the largest, extends into the ...
Occipital locus - transverse or sigmoid sinuses Vertex locus - superior sagittal sinus. Bridging veins ... CT scans can show brain bleeds, fractures of the skull, fluid build up in the brain that will lead to increased cranial ... In children with uncomplicated minor head injuries the risk of intra cranial bleeding over the next year is rare at 2 cases per ... "Is cranial computed tomography unnecessary in children with a head injury and isolated vomiting?". BMJ. 365: l1875. doi: ...
... and the areas between the mastoid and dural sinuses in the posterior cranial fossa.[26] ... The middle cranial fossa, a depression at the base of the cranial cavity forms the thinnest part of the skull and is thus the ... Cranial burst fractureEdit. A cranial burst skull fracture, usually occurring with severe injuries in infants less than 1 year ... The eight cranial bones are separated by sutures : one frontal bone, two parietal bones, two temporal bones, one occipital bone ...
Ocular paralysis (cranial nerve palsy). *Impaired muscle coordination. *Weakness (muscle). *Loss of sensation ...
Cranial nerve paralysis and Horner's syndrome (both rare). Cause[edit]. The bacteria causing the thrombophlebitis are anaerobic ... sinuses, or saliva glands. ...
1. Testes 2. Epididymis 3. Bladder 4. Rectum 5. Ureter 6. Vas Deferens 7. Genito - Urinary Sinus 8. Penis enclosed in a fibrous ... "Comparative cranial morphology in living and extinct platypuses: Feeding behavior, electroreception, and loss of teeth" ...
... and cranial dystonia, and 20% of the patients had associated parkinsonism. Olfactory dysfunction (loss of sense of smell) is ...
This part of the artery is known as the carotid sinus or the carotid bulb. The ascending portion of the cervical segment occurs ... or cranial nerve VI. The named branches of the cavernous segment are: the meningohypophyseal artery the inferolateral trunk The ... In this part of its course, the artery is situated between the layers of the dura mater forming the cavernous sinus, but ... The cavernous segment is surrounded by the cavernous sinus. ... and perforates the dura mater forming the roof of the sinus. ...
The vertebral artery supplies a number of vital structures in the posterior cranial fossa, such as the brainstem, the ... Aneurysm of sinus of Valsalva. *Aortic dissection. *Coronary artery aneurysm. *head / neck *Intracranial aneurysm ...
The urogenital sinus may be divided into three component parts. The first of these is the cranial portion which is continuous ... In the male the pelvic part of the sinus forms the prostatic urethra and epithelium as well as the membranous urethra and bulbo ... the female's urethra empties into the urogenital sinus.[citation needed] ...
Mitchell P, Kerr R, Mendelow AD, Molyneux A. Could late rebleeding overturn the superiority of cranial aneurysm coil ... Aneurysm of sinus of Valsalva. *Aortic dissection. *Coronary artery aneurysm. *head / neck *Intracranial aneurysm ... "Could late rebleeding overturn the superiority of cranial aneurysm coil embolization over clip ligation seen in the ...
... because they cause damage to cranial nerve X, the vagus nerve, which plays an important role in blood circulation and breathing ... A very small proportion is due to cerebral venous sinus thrombosis. Risk factors for ICH include:[12] ...
Venous sinus stenting[edit]. Venous sinus stenoses leading to venous hypertension appear to play a significant part in relation ... If there are cranial nerve abnormalities, these may be noticed on eye examination in the form of a squint (third, fourth, or ... 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 ...
Chronic vasculitis of both large and medium vessels, primarily affecting cranial branches of the arteries arising from the ... paranasal sinus abnormalities. *vessel biopsy showing eosinophils in extravascular areas. Microscopic polyarteritis/ ...
cranial root of accessory nerves(英语:cranial root of accessory nerves) ... Branch of glossopharyngeal nerve to carotid sinus(英语:Branch of glossopharyngeal nerve to carotid sinus) ...
করোটীয় স্নায়ু (Cranial nerve). *সুষুম্নীয় স্নায়ু (Spinal nerve). *স্নায়ুগ্রন্থি (Nerve ganglion). *স্নায়ুধার কোষ (Glial ... Piriform sinus. *spaces:. *Peripharyngeal space *Retropharyngeal space. *Parapharyngeal space. *Retrovisceral space * ...
K07.1) en:Anomalies of jaw-cranial base relationship *en:Asymmetry of jaw ... K04.6) en:Periapical abscess with sinus. *(K04.7) en:Periapical abscess without sinus ...
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2011). "Cranial Fossae". Gray's Clinical Anatomy. Elsevier Health Sciences. p. 154. ISBN 9781437735802.. ... artery of the inferior cavernous sinus [1]. ... fossa of the sphenoid bone in the center of the middle cranial ...
The skull also contains sinuses, air-filled cavities known as paranasal sinuses, and numerous foramina. The sinuses are lined ... These cranial measurements are the basis of what is known as craniology. These cranial measurements were also used to draw a ... forms the protective cranial cavity that surrounds and houses the brain and brainstem. The upper areas of the cranial bones ... middle and posterior cranial fossae changes rapidly. The anterior cranial fossa changes especially during the first trimester ...
Adjacent to the pituitary lies a part of the skull base known as the cavernous sinus. This contains a number of nerves that ... In half of these cases, the oculomotor nerve (the third cranial nerve), which controls a number of eye muscles, is affected. ... The fourth (trochlear) and sixth (abducens) cranial nerves are located in the same compartment and can cause diagonal or ... The cavernous sinus also contains the carotid artery, which supplies blood to the brain; occasionally, compression of the ...
若一個神經元其性質(位置、神經傳導物質、基因表達模式及連結性等)已被充份確認,可以和同一種動物的所有其他神
The blood contained within the intracranial sinuses and veins comprises 70% of the total cerebral blood volume [6]; therefore, ... Subarachnoid Hemorrhage Sinus Thrombosis Superior Sagittal Sinus Cerebral Venous Thrombosis Dural Sinus ... Garcia J.H. (1990) Thrombosis of Cranial Veins and Sinuses: Brain Parenchymal Effects. In: Einhäupl K., Kempski O., Baethmann A ... Nevertheless, because of abundant interconnections among sinuses and some of the larger veins, some portions of the sinuses may ...
The three cranial bones that contain paranasal sinuses are the maxillary bones, the frontal bone and the sphenoid bone. The ... The three cranial bones that contain paranasal sinuses are the maxillary bones, the frontal bone and the sphenoid bone. The ... Sinuses are air-filled cavities within facial bones and are named for the bones that surround them. The frontal bone rests ... Behind the ethmoid bone is the sphenoid bone, which contains the sphenoid sinus. Under the eyes on either side of the nose are ...
Transient Third Cranial Nerve Palsy Caused by Sphenoid Sinus Aspergillosis. Tsai, Rong Kung MD; He, Ming Shan MD; Cheu, Chung ... Transient Third Cranial Nerve Palsy Caused by Sphenoid Sinus Aspergillosis Journal of Neuro-Ophthalmology28(3):239-240, ... Home , September 2008 - Volume 28 - Issue 3 , Transient Third Cranial Nerve Palsy Caused by Sphenoid Sinus... ... Transient third cranial nerve palsy occurs in ophthalmoplegic migraine (1,2), pseudotumor cerebri (3,4), arteriovenous ...
The rhythmic beating of the heart is a... Explanation of cranial venous sinus vein ... Find out information about cranial venous sinus vein. blood vessel that returns blood to the heart heart, muscular organ that ... redirected from cranial venous sinus vein). Also found in: Dictionary, Thesaurus, Medical.. Related to cranial venous sinus ... Cranial venous sinus vein , Article about cranial venous sinus vein by The Free Dictionary https://encyclopedia2. ...
Conventional methods of stabilizing fragments in cranial impression fracture include the use of threads, wires, plates, etc. A ... Keywords Cranial impression fracture Titanium clamps Frontal sinus fracture Received: 19 July 2000 / Accepted: 27 September ... A new method for surgical repair of impression fractures of the cranial vault and frontal sinus with rivet-like titanium clamps ... including one with frontal sinus fracture. Surgery was performed on admission day, with the exception of the sinus fracture. ...
Dural Venous Sinuses and Cerebrospinal FluidCranial meninges, dural venous sinuses (cavernous sinus) and cerebrospinal fluid ... "Lec 20 -Gross Anatomy: Cranial Meninges, Dural Venous Sinuses and Cerebrospinal Fluid"Cranial meninges, dural venous sinuses ( ... Tags: Lec 20 -Gross Anatomy: Cranial Meninges, Dural Venous Sinuses and Cerebrospinal Fluid ... Lec 20 -Gross Anatomy: Cranial Meninges, Dural Venous Sinuses and Cerebrospinal Fluid " ...
Cranial Nerves. Yale School of Medicine. Archived from the original on 2016-03-03. CS1 maint: discouraged parameter (link) ... It carries impulses from the baroreceptors in the carotid sinus to the vasomotor center in the brainstem (to help maintain a ... The carotid branch of the glossopharyngeal nerve (carotid sinus nerve or Herings nerve) is a small branch of the ... and then divides in the angle of the bifurcation of the common carotid artery to innervate the carotid body and carotid sinus. ...
Groove for Sigmoid Sinus is a groove in the posterior cranial fossa. Sigmoid sinus Cancer Web: Sigmoid Sulcus http://ect. ...
... ethmoid sinuses explanation free. What is ethmoid sinuses? Meaning of ethmoid sinuses medical term. What does ethmoid sinuses ... Looking for online definition of ethmoid sinuses in the Medical Dictionary? ... cranial venous sinus. Sinus (3).. dermal sinus. A congenital sinus tract connecting the surface of the body with the spinal ... L. sinus, cavity, channel, hollow] sinus. /si·nus/ (si´nus) pl. si´nus, sinuses [L.] 1. a recess, cavity, or channel, as (a) ...
... - Indian journal of otolaryngology and Head and Neck Surgery ... "Primary Extra cranial Meningioma of Paranasal Sinuses- Case series"- Indian journal of otolaryngology and Head and Neck Surgery ...
The illustration presents the cranial nerves within the cavernous sinus, their relationship to the pituitary gland, vascular ... An overview of the skull with brain, cavernous sinus and internal carotid artery layered in, is also portrayed for orientation ... The trajectory change of the cranial nerve IV before going through the superior fissure was specifically addressed, which was ...
Data about 6.6.2 Headache attributed to cranial venous sinus stenting are scarce. In one series of 21 patients stented for ... 6.6.2 Headache attributed to cranial venous sinus stenting Anastasia 2018-02-06T10:45:14+00:00 *6. Headache attributed to ... Part three: painful cranial neuropathies, other facial pains and other headaches*13. Painful lesions of the cranial nerves and ... Part three: painful cranial neuropathies, other facial pains and other headaches. ▼. *13. Painful lesions of the cranial nerves ...
What Are the Three Cranial Bones That Contain Paranasal Sinuses?. * Q: Do Men Have One Less Rib Than Women?. ...
Frontal sinus lymphoma presenting as progressive multiple cranial nerve palsy, doi: 10.3349/ymj.2011.52.6.1044, category: ... YUHSpace: Frontal sinus lymphoma presenting as progressive multiple cranial nerve palsy. menu ... Primary frontal sinus lymphoma is a very uncommon disease. In all the previously reported cases, the presenting symptoms have ... He was later diagnosed with diffuse large B cell lymphoma originating from the frontal sinus. The patient underwent ...
Antonyms for cranial venous sinus vein. 63 synonyms for vein: blood vessel, mood, style, spirit, way, turn, note, key, ... character, attitude, atmosphere, tone, manner, bent, stamp, humour, tendency.... What are synonyms for cranial venous sinus ... Synonyms for cranial venous sinus vein in Free Thesaurus. ... Cranial venous sinus vein synonyms, cranial venous sinus vein ... redirected from cranial venous sinus vein). Also found in: Dictionary, Medical, Encyclopedia.. Related to cranial venous sinus ...
A case of sinus pericranii communicating with the right transverse sinus is reported. The radiographic findings on CT, ... Cranial Sinuses / pathology* * Craniocerebral Trauma / complications * Female * Hemangioma / diagnosis* * Hemangioma / etiology ... A case of sinus pericranii communicating with the right transverse sinus is reported. The radiographic findings on CT, ... Sinus pericranii: CT and MR findings J Comput Assist Tomogr. Jan-Feb 1990;14(1):124-7. ...
... of the superior semicircular canal may occur on the middle cranial fossa floor or adjacent to the superior petrosal sinus (SPS ...
6.6.2 Headache attributed to cranial venous sinus stenting Amit 2018-02-06T10:45:14+00:00 *6. Headache attributed to cranial or ... Data about 6.6.2 Headache attributed to cranial venous sinus stenting are scarce. In one series of 21 patients stented for ... Unilateral headache caused by and on the same side as cranial venous sinus stenting. ... Jugular or cranial venous stenting has been performed. *Evidence of causation demonstrated by all of the following:. *headache ...
To recognize ocular presentations in cranial venous sinus thrombosis (CVST) which were easy to be misdiagnosis. Retrospective ... From: Analysis of clinical features of ocular presentation in cranial venous sinus thrombosis ... DSA interal carotid arteriography lateral view did not display the superior sagittal sinus in venous phase (black arrow). ...
To recognize ocular presentations in cranial venous sinus thrombosis (CVST) which were easy to be misdiagnosis. Retrospective ... Cranial venous sinus thrombosis (CVST) is a specific type of cerebrovascular disease. Patients present signs of intracranial ... To recognize ocular presentations in cranial venous sinus thrombosis (CVST) which were easy to be misdiagnosis. ... The cause may due to the eighth cranial nerve having a long itinerary in the cranial cavity, it is easily damaged. This group ...
... Dural veins (Straight sinus labeled as SIN. RECTUS at center right.) Dura mater and its processes exposed by ... Cranial+Sinuses Dorlands/Elsevier s_12/12739157 The straight sinus (also known by the alternate anatomical term tentorial sinus ... The straight sinus (tentorial sinus) is situated along the junction of the falx cerebri and the tentorium cerebelli. ... It drains from the inferior sagittal sinus (from the center of the brain) to the transverse sinuses (at the back of the head), ...
Keywords: Venous thrombosis; Neck pain; Oral contraceptives; Cranial sinuses. ???? ??????: 10/1/97 ????: 64053482 (021). ... Investigations with neuroimaging revealed evidence of thrombosis in her right transverse and sigmoid sinuses. The precipitating ...
The skull base forms the floor of the cranial cavity and separates the brain from other facial structures. This anatomic region ... The ethmoid sinuses can be found inferior to the anterior cranial fossa and medial to the orbits. The frontal sinuses arise as ... Cavernous sinus. The cavernous sinus is a complex plexus of veins in the dura that can be found lateral to the sphenoid sinus. ... As a result, the frontal sinus can be used as a route of surgical entry into the anterior cranial fossa. Infectious processes ...
Direct decompression of the CS, with opening of the lateral and superior sinus walls, and piecemeal removal of the tumor in ... The authors describe the use of this technique in a series of patients and demonstrate improvement of cranial nerve function in ... The authors describe a technique in which tumor volume can be reduced to a minimal residual amount, while preserving cranial ... safe locations are performed to facilitate an improvement in cranial nerve function. ...
The risk for cranial nerves ischemia at the cavernous sinus lateral wall Anatomic cadaveric study. Anatomy, Cranial ...
They cover, anterior cranial fossa, nasal cavity, and paranasal sinuses; the sellar, parasellar, and clival region; ... Posterior cranial fossa houses the brainstem and cerebellum.. Posterior cranial fossa lesions--a clinicopathological ... bodily cavity, cavum, cavity - (anatomy) a natural hollow or sinus within the body ...
cranial fossa synonyms, cranial fossa pronunciation, cranial fossa translation, English dictionary definition of cranial fossa ... They cover, anterior cranial fossa, nasal cavity, and paranasal sinuses; the sellar, parasellar, and clival region; ... Related to cranial fossa: Posterior cranial fossa, Middle cranial fossa. fos·sa 1. (fŏs′ə). n. pl. fos·sae (fŏs′ē′) Anatomy A ... Cranial fossa - definition of cranial fossa by The Free Dictionary https://www.thefreedictionary.com/cranial+fossa ...
Damage to cranial nerves in the cavernous sinus leads to diplopia. Cranial nerve VI is often the first affected, leading to ... If cranial nerve V-1 is damaged, the patient will have pain and altered sensation over the front and top of the head. Horners ... Of all cranial meningiomas, about 20% of them are in the sphenoid wing. In some cases, deletions involving chromosome 22 are ... Possible indications for intervention would be a rapid increase in growth or involvement of cranial nerves. Untreated, one ...
Tolerance of cranial nerves of the cavernous sinus to radiosurgery. Int J Radiat Oncol Biol Phys. 1993;27(2):215-21.Google ... Leber KA, Bergloff J, Pendl G. Dose-response tolerance of the visual pathways and cranial nerves of the cavernous sinus to ... Retinal and optic nerve complications in a high dose irradiation technique of ethmoid sinus and nasal cavity. Radiology. 1972; ... Dose-volume complication analysis for visual pathway structures of patients with advanced paranasal sinus tumors. Int J Radiat ...
Cavernous sinus: cranial nerve palsies, particularly ocular palsies. *3rd ventricle: hydrocephalus. *Headaches ... With biochemical failure, on second surgery tumor often found extending through dura into cavernous sinus. Success rate on ...
  • Several cranial nerves course through this sinus. (thefreedictionary.com)
  • 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. (ami.org)
  • Damage to cranial nerves in the cavernous sinus leads to diplopia. (wikipedia.org)
  • In one series, less than one-third of clinoidal meningiomas could be completely resected without unacceptable risk of damaging of blood vessels (especially the carotid artery) or cranial nerves, risks that are lower with radiosurgery. (wikipedia.org)
  • Possible indications for intervention would be a rapid increase in growth or involvement of cranial nerves. (wikipedia.org)
  • Leber KA, Bergloff J, Pendl G. Dose-response tolerance of the visual pathways and cranial nerves of the cavernous sinus to stereotactic radiosurgery. (springer.com)
  • When compared with Gavialis gangeticus , the mid-brain of G. neogaeus is relatively shorter, although the distribution of cranial nerves is similar. (cambridge.org)
  • Anatomy of cross section of cavernous sinus showing close proximity to cranial nerves and sphenoid sinus. (medscape.com)
  • The third and fourth cranial nerves are attached to the lateral wall of the sinus. (medscape.com)
  • This intimate juxtaposition of veins, arteries, nerves, meninges, and paranasal sinuses accounts for the characteristic etiology and presentation of cavernous sinus thrombosis (CST). (medscape.com)
  • Initial viewing of the computed tomography (CT) slices showed preservation of un-erupted teeth, the brain cavity, internal structure in some bones, sinus cavities, pathways of some nerves and blood vessels, and other anatomical structures. (eurasiareview.com)
  • Morbidity was 17.9% for cranial nerves controlling extraocular motor function. (c3.hu)
  • Fortuitously, mammalian endocasts provide not only general information about brain shape and size but also details about the position and form of cranial nerves, blood vessels, sinuses, and even sulcal patterns ( 1 , 2 ). (sciencemag.org)
  • 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. (biomedsearch.com)
  • To gain access to the cranial nerves in the posterior cranial fossa the tentorium cerebelli must be detached from the superior margin of the petrous temporal bone (N98). (unmc.edu)
  • After the tentorium has been severed from all its connections and the dural sac removed, the only structures holding the brain in the cranial cavity are the remaining cranial nerves and the carotid and vertebral arteries. (unmc.edu)
  • To remove the right half of the brain you will need to lift it up and cut through the cranial nerves emerging from the brainstem on the inferior side of the brain (plate N113 , TG7-55 ). (umich.edu)
  • Identify the cranial nerves within the cranial cavity. (umich.edu)
  • This is one of the cranial nerves that control eye movement. (medlineplus.gov)
  • If lesions invade the cavernous sinus, palsies of partial cranial nerves may occur. (spandidos-publications.com)
  • Bilateral cavernous sinuses extend from the petrous segment of the temporal bone to the orbit and contain cranial nerves III (oculomotor), IV (trochlear), V1 (ophthalmic division of the trigeminal nerve), V2 (maxillary division of the trigeminal nerve) and VI (abducens). (appliedradiology.com)
  • The other forementioned cranial nerves travel along the lateral aspects. (appliedradiology.com)
  • What are the three cranial bones that contain paranasal sinuses? (reference.com)
  • The three cranial bones that contain paranasal sinuses are the maxillary bones, the frontal bone and the sphenoid bone. (reference.com)
  • The ethmoid bone also contains a group of air-filled cavities that are often also considered paranasal sinuses. (reference.com)
  • 3. paranasal sinus . (thefreedictionary.com)
  • frontal sinus one of the paired paranasal sinuses in the frontal bone, each communicating with the middle nasal meatus on the same side. (thefreedictionary.com)
  • maxillary sinus one of the paired paranasal sinuses in the body of the maxilla on either side, opening into the middle nasal meatus on the same side. (thefreedictionary.com)
  • Sinus paranasal (Paranasal sinuses). (thefreedictionary.com)
  • The most important anatomic structures below the anterior cranial fossa are the orbits and the paranasal sinuses. (medscape.com)
  • [ 1 ] Cavernous sinus thrombosis is usually a late complication of an infection of the central face or paranasal sinuses. (medscape.com)
  • Although metastases from both the nasal cavity and paranasal sinuses may occur, and distant metastases are found in 20% to 40% of patients who do not respond to treatment, locoregional recurrence accounts for the majority of cancer deaths because most patients die of direct extension into vital areas of the skull or of rapidly recurring local disease. (cancer.gov)
  • Cancers of the maxillary sinus are the most common of the paranasal sinus cancers. (cancer.gov)
  • Some data indicate that various industrial exposures may be related to cancer of the paranasal sinus and nasal cavity. (cancer.gov)
  • 4 ] A subgroup has shown that paranasal sinus and nasal cavity SCCs are associated with human papilloma virus (HPV) infection and that HPV-positive patients may have a better prognosis than those who are HPV negative. (cancer.gov)
  • Johns ME, Kaplan MJ: Advances in the management of paranasal sinus tumors. (cancer.gov)
  • The most common cell type for paranasal sinus and nasal cavity cancers is squamous cell carcinoma. (cancer.gov)
  • Malignant tumors of the nose and paranasal sinuses: a retrospective review of 291 cases. (cancer.gov)
  • A primary chordoma of the nasal cavities and paranasal sinuses is extremely rare compared with clival chordomas, which often present as nasal masses after spreading anteriorly. (thefreelibrary.com)
  • Only a few cases of primary chordoma of the nasal cavities and paranasal sinuses have been reported in the literature. (thefreelibrary.com)
  • As in ourpatient, a primary chordoma of the nasal cavity or paranasal sinuses may present with symptoms related to mechanical obstruction secondary to the tumor mass. (thefreelibrary.com)
  • Computed tomography (CT) of the paranasal sinuses revealed a large soft-tissue mass filling the entire right nasal cavity. (thefreelibrary.com)
  • Sinusitis is the inflammation of the paranasal sinuses, which are located in the facial and cranial areas. (wisegeek.com)
  • These typically arise (along with osteomyelitis of a cranial bone) from infections of the ear or paranasal sinuses. (rug.nl)
  • Infection then spreads to the paranasal sinuses, then to the orbit and cranial cavity. (appliedradiology.com)
  • In humans the paranasal sinuses, mucus-lined cavities in the bones of the face, are connected by passageways to the nose and probably help to warm and moisten inhaled air. (thefreedictionary.com)
  • 1992). 1 Several authors have described extraorbital extension of pseudotumor with involvement of paranasal sinuses, anterior and middle cranial fossa and infratemporal region. (appliedradiology.com)
  • Sinusitis is defined as an infection of the paranasal sinuses, typically secondary to obstruction of normal sinus outflow. (capmed.mil)
  • Gradual dural sinus occlusion of the type that is induced by slow growing tumors, such as a meningioma, is much better tolerated than acute occlusion secondary to either trauma or surgical intervention [24]. (springer.com)
  • O. W. Houser, J. K. Campbell and R. J. Campbell, Arteriovenous malformations affecting the transverse dural venous sinus. (springer.com)
  • Lec 20 -Gross Anatomy: Cranial Meninges, Dural Venous Sinuses and Cerebrospinal Fluid"Cranial meninges, dural venous sinuses (cavernous sinus) and cerebrospinal fluid are shown in this dissection using a human cadaver. (dnatube.com)
  • Dural veins (Straight sinus labeled as 'SIN. (bionity.com)
  • The dural sinuses are grouped into the sagittal, lateral (including the transverse, sigmoid, and petrosal sinuses), and cavernous sinuses. (medscape.com)
  • The cavernous sinuses are the most centrally located of the dural sinuses and lie on either side of the sella turcica. (medscape.com)
  • Dural sinus thrombosis can be identified in up to 26% of patients with symptoms of typical IIH ( 3 ), but cerebral venous thrombosis is often overlooked when intracranial hypertension is isolated ( 4 ). (ajnr.org)
  • In searching for T-cell gateways into and out of the meninges, we discovered functional lymphatic vessels lining the dural sinuses. (nih.gov)
  • Surgical Obliteration of Anterior Cranial Fossa Dural Arteriovenous Fistulas via Unilateral High Frontal Craniotomy. (nih.gov)
  • A 67-year-old man presented with devastating intracranial hemorrhage (ICH) from an anterior cranial fossa dural arteriovenous fistula (DAVF). (biomedsearch.com)
  • Transvenous embolization for dural transverse sinus fistulas with occluded sigmoid sinus. (biomedsearch.com)
  • Dural transverse sinus arteriovenous fistulas with cortical venous drainage were associated with a high hemorrhagic risk. (biomedsearch.com)
  • Dural transverse sinus arteriovenous dural fistulas could be treated by embolization (transarterial or transvenous), surgery or a combination of both. (biomedsearch.com)
  • Dural arteriovenous fistulas (dAVFs) are acquired direct arteriovenous shunts that often drain into the dural venous sinus. (biomedsearch.com)
  • The dural venous sinuses lie in between the two layers of the dura mater. (biomedsearch.com)
  • The dural venous sinuses are important, because they receive blood from the brain and the cranial bones. (biomedsearch.com)
  • Diagnosis and management of dural carotid-cavernous sinus fistulas. (biomedsearch.com)
  • Two-level total en bloc lumbar spondylectomy with dural resection for metastatic renal cell carcinoma. (healthtap.com)
  • Open the dural sinuses. (umich.edu)
  • Sinus pericranii is a cranial venous anomaly in which there is an abnormal communication between intracranial dural sinuses and extracranial venous structures, usually via an emissary transosseous vein. (radiopaedia.org)
  • Color Doppler may show communication with superficial veins and dural venous sinuses 2 . (radiopaedia.org)
  • An abnormal communication between dural sinuses and the cranial vault is usually seen. (radiopaedia.org)
  • The foramen cecum sits between the frontal crest and the prominent crista galli and is a site of communication between the draining veins of the nasal cavity and the superior sagittal sinus. (medscape.com)
  • Tumors of the ethmoid sinuses, nasal vestibule, and nasal cavity are less common, and tumors of the sphenoid and frontal sinuses are rare. (cancer.gov)
  • Computed tomographic scan showed a mass involving the nasal cavity, ethmoid sinuses and anterior cranial fossa. (ispub.com)
  • The nasal mass was excised via a lateral rhinotomy approach and the cranial extension of the tumor was resected completely from the cribriform plate, fovea ethmoidalis and dura by using endoscopes of different angles. (ispub.com)
  • Both bacteria and viruses can cause an infection to develop in the upper respiratory tract, which includes the sinuses, nasal cavity, pharynx and larynx . (wisegeek.com)
  • Rhinitis and sinusitis are infections manifesting in the nasal area and sinuses. (wisegeek.com)
  • Butaric LN, Wadle M, Gascon J*. Anatomical variation in maxillary sinus ostium position: implications for nasal-sinus disease. (dmu.edu)
  • Sinusitis unresponsive to medical therapy after a 3 week trial of a second line agent and a full course of nasal steroid therapy with evidence of disease on the post-treatment sinus CT scan. (capmed.mil)
  • Recurrent nasal polyps unresponsive to medical therapy and evidence of disease on the sinus CT scan. (capmed.mil)
  • This study aimed to review the experience of 13 people with hard-tissue defects at four anatomically different sites: the frontal sinus (three cases), cranial bone (five cases), the jaw (three cases), and the nasal septum (two cases). (drbicuspid.com)
  • Thinning or dehiscence of the superior semicircular canal may occur on the middle cranial fossa floor or adjacent to the superior petrosal sinus (SPS). (bmj.com)
  • The petro-occipital fissure subdivides the middle cranial fossa into 1 central component and 2 lateral components. (medscape.com)
  • Central compartment of the skull base (middle cranial fossa) , which contains the pituitary gland . (hopkinsmedicine.org)
  • 4 The common locations of intracranial extension have been described as the middle cranial fossa and cavernous sinus. (appliedradiology.com)
  • The skull base forms the floor of the cranial cavity and separates the brain from other facial structures. (medscape.com)
  • citation needed] Congenital dermal sinus is a tract from the surface layer of the skin, through the deeper tissues into the cranial or spinal cavity. (wikipedia.org)
  • Such spaces include the middle ear cavity, air sinuses in the head, and the lungs. (scientificamerican.com)
  • Cetaceans also have large Eustachian tubes communicating with the tympanic cavity of the ear and the large pterygoid sinuses of the head. (scientificamerican.com)
  • In certain areas the true dura forms folds that extend into the interior of the cranial cavity as the falx cerebri (N97) and falx cerebelli (N97) and the tentorium cerebelli (N97). (unmc.edu)
  • Identify the features of the cranial cavity and meninges. (umich.edu)
  • The cavity in some cranial bones is also called a sinus. (thefreedictionary.com)
  • Moreover, several authors have determined that the epitympanum, sinus tympani , and middle ear cavity are areas of high risk for recurrent disease. (thefreedictionary.com)
  • Hemorrhage in the posterior cranial fossa in newborn children often ends tragically, statistics show that the lethal outcome with this pathology occurs in most cases. (thefreedictionary.com)
  • Groove for Sigmoid Sinus is a groove in the posterior cranial fossa. (wikipedia.org)
  • If too much tension is allowed on structures in the posterior cranial fossa the vertebral arteries will tear. (unmc.edu)
  • An overview of the skull with brain, cavernous sinus and internal carotid artery layered in, is also portrayed for orientation purposes. (ami.org)
  • The internal carotid artery with its surrounding sympathetic plexus passes through the cavernous sinus. (medscape.com)
  • There has been a general reluctance to explore the cavernous sinus for fear of causing uncontrollable hemorrhage, internal carotid artery (ICA) injury, and cranial nerve injury. (c3.hu)
  • The authors present an unusual case of Lemierre syndrome in a 16-year-old boy with cavernous sinus thrombosis and right internal carotid artery narrowing without neurological sequelae, right subdural empyema, and cerebritis in the right temporal and occipital lobes. (biomedsearch.com)
  • The most medial structures within the cavernous sinuses are the internal carotid artery and cranial nerve VI. (appliedradiology.com)
  • cavernous sinus an irregularly shaped venous channel between the layers of dura mater of the brain, one on either side of the body of the sphenoid bone and communicating across the midline. (thefreedictionary.com)
  • occipital sinus a venous sinus between the layers of dura mater, passing upward along the midline of the cerebellum. (thefreedictionary.com)
  • petrosal sinus, superior one arising from the cavernous sinus and draining into the transverse sinus of the dura mater. (thefreedictionary.com)
  • The posterior wall is thin and adjacent to the superior sagittal sinus and frontal lobe dura. (medscape.com)
  • The skin findings of this tract can include: Pit along neuraxis Flat capillary hemangioma Hypertrichosis Skin tag Abnormal pigmentation Subcutaneous lipoma Signs of local infection The stratified squamous epithelium of the congenital dermal sinus tract can extend to the spinal fascia of the dura mater or all the way to the spinal cord. (wikipedia.org)
  • With biochemical failure, on second surgery tumor often found extending through dura into cavernous sinus. (wikibooks.org)
  • Each cavernous sinus is formed between layers of the dura mater, and multiple connections exist between the 2 sinuses. (medscape.com)
  • A cranial epidural abscess involves pus and granulation tissue accumulation in between the dura mater and cranial bone. (rug.nl)
  • The two layers of dura are separated at certain places to form intracranial venous sinuses. (unmc.edu)
  • In vertebrates (including man), the term "sinus" refers to a channel filled with venous blood in the dura mater. (thefreedictionary.com)
  • Over the past decade, stenting of lateral sinus stenosis has been used to treat idiopathic intracranial hypertension. (ichd-3.org)
  • Direct decompression of the CS, with opening of the lateral and superior sinus walls, and piecemeal removal of the tumor in 'safe' locations are performed to facilitate an improvement in cranial nerve function. (utah.edu)
  • Cranial nerve VI is often the first affected, leading to diplopia with lateral gaze. (wikipedia.org)
  • These sinuses are just lateral and superior to the sphenoid sinus and are immediately posterior to the optic chiasm, as depicted in the image below. (medscape.com)
  • The authors describe a technique in which tumor volume can be reduced to a minimal residual amount, while preserving cranial nerve function. (utah.edu)
  • Proptosis, or anterior displacement of the eye, and palpebral swelling may also occur when the tumor impinges on the cavernous sinus by blocking venous return and leading to congestion. (wikipedia.org)
  • No patient had delayed tumor growth, new cranial neuropathy, visual function deterioration, adverse radiation effects, or hypopituitarism after SRS. (thejns.org)
  • Completeness of tumor resection, cranial nerve morbidity, general morbidity, and long-term outcome were studied. (c3.hu)
  • The differential diagnosis for sphenoid wing meningioma includes other types of tumors such as optic nerve sheath meningioma, cranial osteosarcoma, metastases, and also sarcoidosis. (wikipedia.org)
  • Is the cranial nerve morbidity associated with cavernous sinus meningioma resection acceptable? (c3.hu)
  • A 72-year-old woman presented with meningothelial meningioma causing obstruction of the superior sagittal sinus (SSS). (biomedsearch.com)
  • anterior s's ( sinus anterio´res ) the anterior air cells that together with the middle and posterior air cells form the ethmoidal sinus. (thefreedictionary.com)
  • circular sinus the venous channel encircling the pituitary gland, formed by the two cavernous sinuses and the anterior and posterior intercavernous sinuses. (thefreedictionary.com)
  • intercavernous s's channels connecting the two cavernous sinuses, one passing anterior and the other posterior to the stalk of the pituitary gland. (thefreedictionary.com)
  • The skull base can be subdivided into 3 regions: the anterior, middle, and posterior cranial fossae. (medscape.com)
  • The anterior limit of the anterior skull base is the posterior wall of the frontal sinus. (medscape.com)
  • The anterior clinoid processes and the planum sphenoidale, which forms the roof of the sphenoid sinus, mark the posterior limit. (medscape.com)
  • The frontal bone houses the supraorbital foramina, which, along with the frontal sinuses, form 2 important surgical landmarks during approaches involving the anterior skull base. (medscape.com)
  • Anterior cranial fossa and body of the sphenoid. (medscape.com)
  • The ethmoid bone forms the central part of the floor, which is the deepest area of the anterior cranial fossa. (medscape.com)
  • Elevation of the temporal lobes from the middle cranial fossawill expose the anterior part of the tentorium. (unmc.edu)
  • Meningiomas are the most common tumors affecting the cavernous sinus (CS). (utah.edu)
  • therefore, interrupting the flow of blood through one of the large intracranial sinuses could have disastrous consequences for the entire brain circulation. (springer.com)
  • Brain MRI showed a heterogeneous space-occupying lesion in the right sphenoid sinus and a soft tissue lesion in the basal cisterns and sylvian fissure with low signal intensity on precontrast T1 and enhancement on postcontrast T1. (lww.com)
  • cerebral sinus one of the ventricles of the brain. (thefreedictionary.com)
  • The straight sinus (also known by the alternate anatomical term tentorial sinus ), within the human head, is an area beneath the brain, which allows blood veins to span the area, from the center of the head towards the back. (bionity.com)
  • It drains from the inferior sagittal sinus (from the center of the brain) to the transverse sinuses (at the back of the head), then to the sigmoid sinuses below the brain. (bionity.com)
  • A head computed tomography (CT) scan uses many x-rays to create pictures of the head, including the skull, brain, eye sockets, and sinuses. (medlineplus.gov)
  • The cranial endocast is sub-horizontal and the angle formed between the mid-brain and the hind-brain is poorly marked. (cambridge.org)
  • Brain and cranial nerve disorders. (medlineplus.gov)
  • S. Jarcho, Von Dusch on thrombosis of the cerebral sinuses (1861), Am. J . Cardiol. (springer.com)
  • B. Kaplan and J. Parker Mickle, Cavernous sinus thrombosis, in: "The Cerebral Venous System and its Disorders", Grune & Stratton Inc., New York, pp 537 - 546 (1984). (springer.com)
  • To recognize ocular presentations in cranial venous sinus thrombosis (CVST) which were easy to be misdiagnosis. (biomedcentral.com)
  • Cranial venous sinus thrombosis (CVST) is a specific type of cerebrovascular disease. (biomedcentral.com)
  • Cavernous sinus thrombosis (CST) was initially described by Bright in 1831 as a complication of epidural and subdural infections. (medscape.com)
  • Because of its complex neurovascular anatomic relationship, cavernous sinus thrombosis is the most important of any intracranial septic thrombosis. (medscape.com)
  • Cavernous sinus thrombosis is generally a fulminant process with high rates of morbidity and mortality. (medscape.com)
  • Fortunately, the incidence of cavernous sinus thrombosis has been decreased greatly with the advent of effective antimicrobial agents. (medscape.com)
  • Occurrence of cavernous sinus thrombosis (CST) has always been low, with only a few hundred case reports in the medical literature. (medscape.com)
  • I'd like to welcome you to today's COCA Call: Johnson and Johnson Janssen COVID-19 Vaccine and Cerebral Venous Sinus Thrombosis with Thrombocytopenia -- Update for Clinicians on Early Detection and Treatment. (cdc.gov)
  • Today I'll be discussing some background on the CVST situation and then move into a description of the reports of cerebral venous sinus thrombosis with thrombocytopenia following the Janssen COVID-19 vaccine. (cdc.gov)
  • Cranial MRI revealed a cavernous sinus thrombosis and a subarachnoid abscess. (biomedsearch.com)
  • They rarely can be caused by distant infection or an infected cerebral venous sinus thrombosis . (rug.nl)
  • Sinus pericranii: clinical and imaging findings in two cases of spontaneous partial thrombosis. (radiopaedia.org)
  • dermal sinus a congenital sinus tract extending from the surface of the body, between the bodies of two adjacent lumbar vertebrae, to the spinal canal. (thefreedictionary.com)
  • Congenital dermal sinus is an uncommon form of cranial or spinal dysraphism. (wikipedia.org)
  • Congenital dermal sinus form due to a focal failure of dysjunction between the cutaneous ectoderm and neuroectoderm during the third to eight week of gestation. (wikipedia.org)
  • Typically observed in the lumbar and lumbosacral region, congenital dermal sinus can occur from the nasion and occiput region down. (wikipedia.org)
  • Early diagnosis and treatment is crucial for cases of congenital dermal sinus. (wikipedia.org)
  • In cases of congenital dermal sinus there is a failure in this process, resulting in formation of a persistent connection between the skin and neural tissue. (wikipedia.org)
  • Congenital dermal sinus may form at any point along the midline of the neuraxis, however, the majority form in the lumbar and lumbosacral region (41% and 35% of cases respectively). (wikipedia.org)
  • Congenital dermal sinus is often diagnosed in infants and children. (wikipedia.org)
  • Early diagnosis is important in congenital dermal sinus, so that treatment can be provided early, to prevent progression of associated complications. (wikipedia.org)
  • There three key hallmarks of congenital dermal sinus: cutaneous abnormalities, infection, and neurological deficits. (wikipedia.org)
  • Thus, the congenital dermal sinus forms a point of entry for infection, this can allow for the formation of an abscess. (wikipedia.org)
  • Magnetic Resonance Imaging (MRI) is the preferred tool for diagnostic and preoperative imaging of congenital dermal sinus. (wikipedia.org)
  • Treatment of congenital dermal sinus involves complete resection of the tract as well as intradural exploration. (wikipedia.org)
  • Prophylactic surgical removal of the congenital dermal sinus tract is beneficial for the patient, allowing neurological and bladder function to be maintained. (wikipedia.org)
  • Early surgical intervention results decreases the risk of infection and/or tumour progression - factors typically associated with delayed presentation of congenital dermal sinus. (wikipedia.org)
  • The tract of the congenital dermal sinus must then be explored and excised, with intradural lesions dissected. (wikipedia.org)
  • Prior to pervasive use and availability of advanced methods of neuroimaging, it is possible that the rate of incidence of congenital dermal sinus has been supplemented by the incidence of coccygeal pits. (wikipedia.org)
  • Dermal sinuses always arise higher, cranial to the intergluteal cleft. (askwaltstollmd.com)
  • CSF shunts, spinal and cranial abnormalities (eg dermal sinuses) which may have predisposed a child to meningitis. (rch.org.au)
  • and the ethmoid cells ( ethmoid sinuses ) in the ethmoid bone behind and below the frontal sinuses. (thefreedictionary.com)
  • The cavernous sinuses are irregularly shaped, trabeculated cavities located at the base of the skull. (medscape.com)
  • The cavernous sinuses receive venous blood from the facial veins (via the superior and inferior ophthalmic veins) as well as the sphenoid and middle cerebral veins. (medscape.com)
  • Since the cavernous sinuses receive blood via this distribution, infections of the face including the nose, tonsils, and orbits can spread easily by this route. (medscape.com)
  • Bilateral Meckel's caves are inferolateral to each of the cavernous sinuses. (appliedradiology.com)
  • Sagittal and coronal images with a small field of view in thin sections (≤3 mm) are obtained through the sella turcica to include the parasellar structures, including the suprasellar cistern, cavernous sinuses, Meckel's cave and hypothalamus. (appliedradiology.com)
  • It forms from the confluence of the inferior sagittal sinus and great cerebral vein (great vein of Galen). (bionity.com)
  • Total cerebral, superior sagittal sinus (SSS), and straight sinus blood flows were measured. (ajnr.org)
  • Total cerebral, superior sagittal sinus (SSS), and straight sinus blood flow have been used to differentiate the two subgroups. (ajnr.org)
  • The terminal part of the straight sinus drains into the confluence of the sinuses. (bionity.com)
  • Transient Third Cranial Nerve Palsy Caused by Sphenoid Sinus. (lww.com)
  • We recently examined a patient who developed a nearly complete unilateral third cranial nerve palsy attributed to sphenoid sinus aspergillosis. (lww.com)
  • The transient nature of our patient's third cranial nerve palsy is curious. (lww.com)
  • We present an unusual case report of an immunocompetent patient who presented with facial palsy, and then progressively developed other cranial nerve palsies over several months. (yonsei.ac.kr)
  • The ophthalmic and maxillary divisions of the fifth cranial nerve are embedded in the wall. (medscape.com)
  • Intracranial complications may occur as a result of direct extension through the posterior frontal sinus wall or through retrograde thrombophlebitis of the ophthalmic veins. (medscape.com)
  • The roof of the sphenoid sinuses form the floor of the sella, and their architecture affects the floor of the sella and its reaction to pathology. (appliedradiology.com)
  • carotid sinus a dilatation of the proximal portion of the internal carotid or distal portion of the common carotid artery, containing in its wall pressoreceptors that are stimulated by changes in blood pressure. (thefreedictionary.com)
  • The sixth cranial nerve follows a more medial course in close approximation to the internal carotid, as depicted in the image above. (medscape.com)
  • Seventy-nine patients underwent direct surgery of the cavernous sinus between January 1985 and July 1994 at the University of Cincinnati Medical Center, including 60 for neoplasm, 14 for aneurysms, and 5 for carotid-cavernous fistulas. (c3.hu)
  • A carotid-cavernous sinus fistula (CCF) is an abnormal communication between the cavernous sinus and the carotid arterial system. (biomedsearch.com)
  • Stereotactic radiosurgery (SRS) is an important treatment option for patients with cavernous sinus meningiomas (CSM). (thejns.org)
  • The optimal management for patients with cavernous sinus meningiomas remains controversial. (c3.hu)
  • Cranial nerve palsies have been reported in as many as 33% of cases of herpes zoster ophthalmicus, with the third cranial nerve being the most frequently affected. (medscape.com)
  • Also, notice the markings on the inside of the calvaria made by blood vessels (N7), arachnoid granulations (879/N7), and the venous sinuses (N7). (unmc.edu)
  • They are comprised of non-muscular venous blood vessels which tightly adhere to the outer calvaria and directly communicate with an intracranial venous sinus through diploic veins 1,4 . (radiopaedia.org)
  • In a retrospective review of 23 cases (8 epidural, 10 subdural, 2 intracerebral abscess, and 3 meningitis) of intracranial complications of sinusitis (ICS) to identify the role and effectiveness of endoscopic sinus surgery (ESS) in the acute setting of ICS, DelGuadio et al concluded that ESS did not alter the need for neurosurgical intervention, which was ultimately necessary in most patients, even those with lesions less than 1 cm. (medscape.com)
  • Our retrospective review of 39 patients with meningiomas involving the cavernous sinus who underwent surgical treatment at our institution from 1985 to 1994 differs from recently reported results in terms of resectability and morbidity. (c3.hu)
  • Emissary veins traverse emissary foramina of the skull and connect venous sinuses to extracranial veins. (hindawi.com)
  • This disorder affects the third cranial nerve in the skull. (medlineplus.gov)
  • Sinuses are air-filled cavities within facial bones and are named for the bones that surround them. (reference.com)
  • Nevertheless, because of abundant interconnections among sinuses and some of the larger veins, some portions of the sinuses may be surgically occluded without undesirable consequences. (springer.com)
  • coronary sinus the dilated terminal portion of the great cardiac vein, receiving blood from other veins draining the heart muscle and emptying into the right atrium. (thefreedictionary.com)
  • They, in turn, empty into the inferior petrosal sinuses, then into the internal jugular veins and the sigmoid sinuses via the superior petrosal sinuses. (medscape.com)
  • The extensive connections of the veins with cranial venous sinuses may lead to intracranial infections and vice versa. (hindawi.com)
  • Under the eyes on either side of the nose are the maxillary bones, which contain the maxillary sinuses. (reference.com)
  • Fontanel - Soft gap between cranial bones in infants. (rch.org.au)
  • The cranial nerve involvement may take place within the orbit or the cavernous sinus. (medscape.com)
  • It is more common for SN pathology to affect the orbit than the reverse, and primary sinus pathology may initially present with predominantly orbital, rather than sinus, symptomatology. (appliedradiology.com)
  • Behind the ethmoid bone is the sphenoid bone, which contains the sphenoid sinus. (reference.com)
  • Tumors found in the external third of the sphenoid are of two types: en-plaque and globoid meningiomas. (wikipedia.org)
  • Cavernous sinus hemangiomas (CSHs) are rare vascular tumors. (thejns.org)
  • C avernous sinus hemangioma (CSH) is a rare intracranial or intraorbital vascular neoplasm that accounts for approximately 2%-3% of all cavernous sinus (CS) tumors. (thejns.org)
  • Recent reports (9, 12, 17, 24, 32, 34-37) have presented an optimistic outlook for patients harboring this pathological abnormality, but at least one senior neurosurgeon (30) has expressed his reservations concerning the morbidity associated with aggressive surgical treatment of tumors that affect the cranial base. (c3.hu)
  • We outline the difficulties that our cranial base team faced in treating these tumors to continue the debate regarding the proper indications for cavernous sinus surgery. (c3.hu)
  • The falx cerebri is cut at its attachment to the crista galli and the superior portion pulled back to the attachments along the transverse sinuses. (unmc.edu)
  • petrosal sinus, inferior a venous channel arising from the cavernous sinus and draining into the internal jugular vein. (thefreedictionary.com)
  • An occipital emissary foramen has been traditionally described as a foramen present in the squamous part of the occipital bone at the occipital protuberance transmitting a vein that connects the confluence of sinuses with the occipital vein. (hindawi.com)
  • It transmits the occipital emissary vein that connects the confluence of sinuses with the occipital vein. (hindawi.com)
  • Brook I. Aerobic and anaerobic bacterial flora of normal maxillary sinuses. (medscape.com)
  • Bacteriology of endoscopically normal maxillary sinuses. (medscape.com)
  • The mandibular division of the trigeminal nerve (V3) lies external to the cavernous sinus and exits through foramen ovale vertically oriented beneath Meckel's cave. (appliedradiology.com)
  • What are the possible intracranial complications of acute sinusitis (sinus infection)? (medscape.com)
  • Intracranial complications of sinusitis should be managed surgically with drainage of both the affected sinus and the cranial abscess. (medscape.com)
  • Orbital or cranial complications of sinus infections. (capmed.mil)
  • Medical therapy alone was successful in avoiding craniotomy in only 3 of 8 cases, and treatment with endoscopic sinus surgery and intravenous antibiotics was successful in avoiding craniotomy in only 1 of 6 patients. (medscape.com)
  • An endoscopic sinus surgery was performed. (thefreelibrary.com)
  • Of all cranial meningiomas, about 20% of them are in the sphenoid wing. (wikipedia.org)
  • En plaque meningiomas characteristically lead to slowly increasing proptosis with the eye angled downward. (wikipedia.org)
  • However, meningiomas arising at the cranial base, particularly those involving the cavernous sinus region, still present a formidable surgical challenge. (c3.hu)
  • For treatment of cavernous sinus meningiomas, several questions remain unanswered. (c3.hu)
  • Are meningiomas of the cavernous sinus curable? (c3.hu)
  • Thirty-nine patients (27 women and 12 men) ranging in age from 24 to 73 years (median, 48 yr) underwent surgery for meningiomas involving the cavernous sinus during this 9-year period. (c3.hu)
  • Between the eyes and beneath the frontal bone is the ethmoid bone, which contains the group of small ethmoidal sinuses. (reference.com)
  • Structures which pass through the cavernous sinus are partially exposed. (stanford.edu)
  • The cancers grow within the bony confines of the sinuses and are often asymptomatic until they erode and invade adjacent structures. (cancer.gov)
  • The trajectory change of the cranial nerve IV before going through the superior fissure was specifically addressed, which was oftentimes overlooked. (ami.org)
  • The remnant mass was widely excised en bloc along with the superior portion of the right middle turbinate. (thefreelibrary.com)
  • At this time locate and open the superior sagittal sinus (879/N94). (unmc.edu)
  • A longitudinal cut on each side of superior sagittal sinus. (unmc.edu)
  • The mass was extending into the right cavernous sinus through the superior orbital fissure and into the sella, displacing the pituitary gland. (appliedradiology.com)
  • This is important because intercourse and orgasm are associated with Valsalva-like maneuvers that increase pressure in the vertebral venous plexus (VVP), the superior sagittal sinus, and reverse the CSF pressure gradient. (dynamicchiropractic.com)
  • It occurs in close communication with the cranial vault and most frequently involves the superior sagittal sinus. (radiopaedia.org)