TY - JOUR T1 - Rare anatomical variations of persistent trigeminal artery in two patients with non-aneurysmal subarachnoid hemorrhage JF - Journal of NeuroInterventional Surgery JO - J NeuroIntervent Surg SP - 282 LP - 284 DO - 10.1136/jnis.2010.003665 VL - 3 IS - 3 AU - Edgar A Samaniego AU - Guilherme Dabus AU - Vincenzo Andreone AU - Italo Linfante Y1 - 2011/09/01 UR - http://jnis.bmj.com/content/3/3/282.abstract N2 - 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. ER -