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The cavernous sinus is one of the dural venous sinuses of the head. It is a network of veins that sit in a cavity.It sits on both sides of the sphenoidal bone and pituitary gland, approximately 1 × 2 cm in size in an adult. [2]
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 ]
The cavernous sinus lies within the cranial cavity, between layers of the meninges, and is a major conduit of venous drainage from the brain. [3] Despite this relatively plausible anatomical argument, only severe facial infections (e.g., nasal abscess) can lead to a deeper central nervous system infection complication.
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 ...
The walls of the dural venous sinuses are composed of dura mater lined with endothelium, a specialized layer of flattened cells found in blood and lymph vessels.They differ from other blood vessels in that they lack a full set of vessel layers (e.g. tunica media) characteristic of arteries and veins.
A carotid-cavernous fistula results from an abnormal communication between the arterial and venous systems within the cavernous sinus in the skull. It is a type of arteriovenous fistula .
Oblique section through the cavernous sinus. The cavernous segment, or C4, of the internal carotid artery begins at the petrolingual ligament and extends to the proximal dural ring, which is formed by the medial and inferior periosteum of the anterior clinoid process. The cavernous segment is surrounded by the cavernous sinus.
The cavernous section of the internal carotid artery begins at the superior aspect of the petrolingual ligament. For surgeons and radiologists , it is important to be oriented to the location of this ligament in cases of possible dissection of the internal carotid artery, as it helps determine whether the dissection has occurred inside or ...