RT Journal Article SR Electronic T1 A Rare Anatomic Variant of a Solitary Internal Carotid Artery Associated with Moyamoya Phenomenon of the Middle Cerebral Artery JF American Journal of Neuroradiology JO Am. J. Neuroradiol. FD American Society of Neuroradiology SP 2012 OP 2013 VO 27 IS 9 A1 Wong, G.K.C. A1 Yu, S.C.H. A1 Antonio, G.E. A1 Poon, W.S. YR 2006 UL http://www.ajnr.org/content/27/9/2012.abstract AB SUMMARY: A case of a congenital solitary internal carotid artery with complicated anastomosis is presented. This rare anomaly was an incidental finding at cerebral angiography in a patient with a poor-grade subarachnoid hemorrhage and a ruptured anterior communicating artery aneurysm.