title: Multiple aneurysms associated with agenesis of internal carotid artery.
abstract: Agenesis of internal carotid artery (ICA) is a rare anomaly. The contralateral dominant artery has a high incidence of aneurysms. A 50-year-old male patient had aneurysmal subarachnoid hemorrhage due to rupture of a paraclinoid aneurysm. He also had an anterior communicating artery (Acom) aneurysm and the contralateral ICA was absent. To the best of the authors knowledge, the combination of agenesis of unilateral internal carotid artery with the unique association of a paraclinoid and an Acom aneurysm has not been previously reported. A meticulous assessment of the collateral blood circulation prior to surgery is mandatory in these cases for avoiding postoperative ischemic injury.
authors.affiliation: Department of Neurosurgery, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, India. abrarwani@rediffmail.com
authors.forename: Abrar
authors.initials: A
authors.lastname: Wani
authors.forename: Sanjay
authors.initials: S
authors.lastname: Behari
authors.forename: Bernard
authors.initials: B
authors.lastname: Lyndoh
authors.forename: Awdesh
authors.initials: A
authors.lastname: Jaiswal
authors.forename: Rn
authors.initials: R
authors.lastname: Sahu
authors.forename: Vk
authors.initials: V
authors.lastname: Jain
mesh_terms: D002343:Carotid Artery, Internal / Q000002:abnormalities* / Q000000981:diagnostic imaging* / Q000601:surgery; D002533:Cerebral Angiography; D006801:Humans; D002532:Intracranial Aneurysm / Q000000981:diagnostic imaging* / Q000601:surgery; D008297:Male; D008875:Middle Aged; D019635:Neurosurgical Procedures / Q000295:instrumentation / Q000379:methods; D012720:Severity of Illness Index; D013525:Surgical Instruments