Sphenoparietal sinus

The sphenoparietal sinus is a paired dural venous sinus situated along the posterior edge of the lesser wing of either sphenoid bone. It drains into the cavernous sinus.^[2]

Anatomy

A sphenoparietal sinus is situated under each lesser wing of the sphenoid bone near the posterior edge of this bone,^[2] between the anterior cranial fossa and middle cranial fossa.^{[citation needed]} It terminates by draining into the anterior part of the cavernous sinus.^[2]

Tributaries

A sphenoparietal sinus receives small veins from the adjacent