RT Journal Article
SR Electronic
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
FD BMJ Publishing Group Ltd.
SP 282
OP 284
DO 10.1136/jnis.2010.003665
VO 3
IS 3
A1 Edgar A Samaniego
A1 Guilherme Dabus
A1 Vincenzo Andreone
A1 Italo Linfante
YR 2011
UL http://jnis.bmj.com/content/3/3/282.abstract
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.