Tentorial dural arteriovenous fistula of the medial tentorial artery.
The medial tentorial artery arises from the meningohypophyseal trunk, a branch of the cavernous internal carotid artery, and it is poorly visualized on angiography in the absence of pathologically increased blood flow. We present the case of a 38-year-old man with intraventricular hemorrhage from a tentorial dural arteriovenous fistula (DAVF) singularly supplied by a robust medial tentorial artery. Tentorial DAVFs comprise a rare but high-risk subset of DAVFs. The diagnosis was suggested by computed tomography and magnetic resonance imaging findings and confirmed with digital subtraction angiography.
Department of Radiology, Harbor-UCLA Medical Center, 1000 W Carson St, Box 23, Torrance, CA 90509, USA.
Syrone
S
Liu
Department of Radiology, Harbor-UCLA Medical Center, 1000 W Carson St, Box 23, Torrance, CA 90509, USA.
Dane C
DC
Lee
Department of Radiology, Harbor-UCLA Medical Center, 1000 W Carson St, Box 23, Torrance, CA 90509, USA.
Tad
T
Tanoura
Dural arteriovenous fistula; Medial tentorial artery