Quadrigeminal cistern

[2][4] It contains a part of the great cerebral vein, the posterior cerebral artery, quadrigeminal artery, glossopharyngeal nerve (CN IX), and the pineal gland.

The quadrigeminal cistern lies between the splenium of the corpus callosum (superiorly), the cerebellar vermis (inferiorly and posteriorly),[5][6] and the tentorial margin.

[3] The superior cistern contains a number of important structures, including: Arteriovenous malformations of the great cerebral vein can create an enlarged pouch of vein in the superior cistern.

This is derived from the prosencephalic vein present during prenatal development.

This is used in order to access deeper brain structures, such as the superior colliculus.