Cavernous Sinus

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Information about Cavernous Sinus

Published on September 30, 2015

Author: SumbulMurtaza



2. Dural venous sinus is bordered by temporal bone & sphenoid bone and is present lateral to the sella turcica.

3. Boundaries

4. Anterior: medial end of superior orbital fissure

5. Posterior: petrous part of temporal bone

6. Superior: optic tract, optic chiasm, and internal carotid artery Inferior: greater wing of sphenoid bone Medial: sella turcica and sphenoid air sinuses Lateral: CN III, IV, V1, V2, and Trigeminal ganglion

7. Venous connections

8. Tributaries to cavernous sinus 1. Sphenoparietal sinus 2. Superior & inferior ophthalmic veins 3. Middle cerebral vein

9. Venous Drainage 1. via sigmoid sinus into internal jugular vein

10. 2. via emissary veins, deep facial veins, and inferior ophthalmic vein into pterygoid plexus.

11. Clinical significance

12. Carotid cavernous fistula

13. Opthalmoplegia Tumor  compression of cavernous sinus  nerves passing through the sinus compressed  extraocular muscle paralysis (opthalmoplegia)

14. ‘Danger area’

15. Cavernous sinus syndrome

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