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Cerebral venous sinus thrombosis (CVST), cerebral venous and sinus thrombosis or cerebral venous thrombosis (CVT), is the presence of a blood clot in the dural venous sinuses (which drain blood from the brain), the cerebral veins, or both.
The sigmoid sinus is a dural venous sinus situated within the dura mater.The sigmoid sinus receives blood from the transverse sinuses, which track the posterior wall of the cranial cavity, travels inferiorly along the parietal bone, temporal bone and occipital bone, and converges with the inferior petrosal sinuses to form the internal jugular vein.
It is seen as dural wall enhancement in the absence of intra-sinus enhancement (there is no enhancement in the lumen of the dural sinus). [1] This is due to the presence of a blood clot in the dural venous sinuses. The dural venous sinuses drain blood from the brain to the internal jugular veins, which in turn drains blood to the heart.
The sinuses can be injured by trauma in which damage to the dura mater, may result in blood clot formation (thrombosis) within the dural sinuses. Other common causes of dural sinus thrombosis include tracking of infection through the ophthalmic vein in orbital cellulitis .
Each transverse sinus passes lateral and forward, describing a slight curve with its convexity upward, to the base of the petrous portion of the temporal bone, and lies, in this part of its course, in the attached margin of the tentorium cerebelli; it then leaves the tentorium and curves downward and medialward (an area sometimes referred to as ...
Jugular vein thrombosis is a condition that may occur due to infection, intravenous drug use or malignancy. Jugular vein thrombosis can have a varying list of complications, including: systemic sepsis, pulmonary embolism, and papilledema. Though characterized by a sharp pain at the site of the vein, it can prove difficult to diagnose, because ...
Right smack in the center of that triangle, although under the surface of the skin, is the cavernous sinus, which houses essential nerves and blood vessels that carry blood back to the brain. If ...
Cavernous sinus thrombosis (CST) is the formation of a blood clot within the cavernous sinus, a cavity at the base of the brain which drains deoxygenated blood from the brain back to the heart. This is a rare disorder and can be of two types–septic cavernous thrombosis and aseptic cavernous thrombosis. [ 1 ]
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