Superior petrosal sinus

The superior petrosal sinus is one of the dural venous sinuses located beneath the brain. It receives blood from the cavernous sinus and passes backward and laterally to drain into the transverse sinus. The sinus receives superior petrosal veins, some cerebellar veins, some inferior cerebral veins, and veins from the tympanic cavity. They may be affected by arteriovenous malformation or arteriovenous fistula, usually treated with surgery.

Superior petrosal sinus
Dural veins
The sinuses at the base of the skull. (Superior petrosal sinus visible at center left.)
Details
Sourcecavernous sinus
Drains totransverse sinus
Identifiers
Latinsinus petrosus superior
TA98A12.3.05.115
TA24850
FMA50771
Anatomical terminology

Structure

The superior petrosal sinus is located beneath the brain. It originates from the cavernous sinus. It passes backward and laterally to drain into the transverse sinus.

The sinus runs in the attached margin of the tentorium cerebelli, in a groove in the petrous part of the temporal bone formed by the sinus itself - the superior petrosal sulcus.

Function

The superior petrosal sinus drains many veins of the brain, including superior petrosal veins,[1] some cerebellar veins, some inferior cerebral veins, and veins from the tympanic cavity.

Clinical significance

The superior petrosal sinus may be affected by an arteriovenous malformation or arteriovenous fistula.[2] Most do not resolve by themselves.[2] They may be treated with endovascular surgery or open surgery.[2]

Additional images
  • Superior petrosal sinus

References
  1. Matsushima, Ken; Matsushima, Toshio; Kuga, Yoshihiro; Kodama, Yuji; Inoue, Kohei; Ohnishi, Hideyuki; Rhoton, Albert L. (20 February 2014). "Classification of the Superior Petrosal Veins and Sinus Based on Drainage Pattern". Operative Neurosurgery. 10 (2): 357–367. doi:10.1227/NEU.0000000000000323 – via Oxford.
  2. Ng, Perry P.; Halbach, Van V.; Quinn, Roswell; Balousek, Peter; Caragine, Louis P.; Dowd, Christopher F.; Higashida, Randall T.; Wilson, Charles (1 July 2003). "Endovascular Treatment for Dural Arteriovenous Fistulae of the Superior Petrosal Sinus". Neurosurgery. 53 (1): 25–33. doi:10.1227/01.NEU.0000068790.37318.24 – via Oxford.
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