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Transverse sinus

Dr Frank Gaillard et al.

The transverse sinus is one of the dural venous sinuses and drains the superior sagittal sinus the occipital sinus and the straight sinus, and empties into the sigmoid sinus which in turn reaches the jugular bulb.

The two transverse sinuses arise at the confluence of the three aforementioned sinuses at the torcula herophili or confluence of sinuses.

Highly variable anatomy. For example one study:

20% aplasias of the left sinus
39% hypoplasia of the left sinus
31% symmetric
6% hypoplasia of the right sinus
4% aplasias of the right sinus

References

Article Information:

Systems: Vascular, Central Nervous System

Section: Anatomy

AP DSA

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Dural venous sinuses Diagram of the dural venous sinuses. Original image of the skull base created by Patrick J. Lynch, and distributed under  Creative Commons Attribution 2.5 license - see case page (http://commons.wikimedia.org/wiki/File:Skull_interior_anatomy.svg) for more info. Dural venous sinuses and labels added by Frank Gaillard.

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