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Cavernous sinus

From Wikipedia, the free encyclopedia

Vein: Cavernous sinus
Oblique section through the cavernous sinus. (Cavernous sinus labeled at upper right.)
The sinuses at the base of the skull. (Cavernous sinus visible at center left, labeled in very small print.)
Latin sinus cavernosus
Gray's subject #171 658
Source middle cerebral vein, sphenoparietal sinus, superior ophthalmic vein
Dorlands/Elsevier s_12/12738628

The cavernous sinus (or lateral sellar compartment) is a large collection of thin-walled veins creating a cavity bordered by the sphenoid bone and the temporal bone of the skull.

Contents

[edit] Contents

Each cavernous sinus (one for each hemisphere of the brain) contains the following:

One mnemonic for remembering the contents is "OTOM CAT"[1]

[edit] Clinical significance

It is the only anatomic location in the body in which an artery travels completely through a venous structure.

If the internal carotid artery ruptures within the cavernous sinus, an arteriovenous fistula is created. Cavernous sinus syndrome may result from mass effect from a tumor and cause ophthalmoplegia (from compression of the oculomotor nerve, trochlear nerve, and abducens nerve), ophthalmic sensory loss (from compression of the ophthalmic nerve), and maxillary sensory loss (from compression of the maxillary nerve).

[edit] Additional images

[edit] See also

[edit] References

  1. ^ Mnemonic at medicalmnemonics.com 1094

[edit] External links



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