title: Rare anatomical variations of persistent trigeminal artery in two patients with non-aneurysmal subarachnoid hemorrhage.
abstract: Carotid-basilar anastomoses are remnants of the fetal circulation and although rare, they may become symptomatic and should be recognized during cerebral angiography. Two patients are described with non-aneurysmal subarachnoid hemorrhage and persistent trigeminal arteries (PTA) found on cerebral angiography. In the first patient, the PTA ended in the anterior inferior cerebellar artery (AICA) and posterior inferior cerebellar artery. The second patient had a PTA terminating in the AICA and superior cerebellar artery. These rare anatomical PTA variants should be recognized on cerebral angiography.
authors: Baptist Cardiac and Vascular Institute, 8900 N Kendall Drive, Miami 33176, Florida. edgarsama@gmail.com
authors: Edgar A
authors: EA
authors: Samaniego
authors: Guilherme
authors: G
authors: Dabus
authors: Vincenzo
authors: V
authors: Andreone
authors: Italo
authors: I
authors: Linfante
mesh_terms: D000368:Aged; D001158:Arteries / Q000002:abnormalities*; D002343:Carotid Artery, Internal / Q000002:abnormalities / Q000000981:diagnostic imaging; D002531:Cerebellum / Q000098:blood supply*; D002533:Cerebral Angiography; D005260:Female; D006261:Headache / Q000000981:diagnostic imaging / Q000209:etiology; D006801:Humans; D008297:Male; D008875:Middle Aged; D013345:Subarachnoid Hemorrhage / Q000000981:diagnostic imaging / Q000209:etiology*