PT  - JOURNAL ARTICLE
AU  - Edgar A Samaniego
AU  - Guilherme Dabus
AU  - Vincenzo Andreone
AU  - Italo Linfante
TI  - Rare anatomical variations of persistent trigeminal artery in two patients with non-aneurysmal subarachnoid hemorrhage
AID  - 10.1136/jnis.2010.003665
DP  - 2011 Sep 01
TA  - Journal of NeuroInterventional Surgery
PG  - 282--284
VI  - 3
IP  - 3
4099  - http://jnis.bmj.com/content/3/3/282.short
4100  - http://jnis.bmj.com/content/3/3/282.full
SO  - J NeuroIntervent Surg2011 Sep 01; 3
AB  - 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.