Microsurgical resection of ambient cistern arteriovenous malformation

Omar Choudhri, MD, and Michael T. Lawton, MD Department of Neurosurgery, University of California, San Francisco, California The middle tentorial incisural space, located lateral to the midbrain and medial to the temporal lobe, contains the ambient cistern through which courses the third, fourth, and fifth cranial nerves, posterior cerebral artery (PCA), superior cerebellar artery, and the choroidal arteries. Arteriovenous malformations (AVMs) in this compartment are supplied by the thalamogeniculate and