title: A ruptured anterior communicating artery aneurysm associated with internal carotid artery agenesis and a middle cerebral artery anomaly.
abstract: Agenesis of the internal carotid artery associated with an anomalous middle cerebral artery originating from the contralateral internal carotid artery is rare. We report a patient with agenesis of the internal carotid artery presented with a subarachnoid hemorrhage due to a rupture of an aneurysm in the anterior communicating artery.
authors.affiliation: Department of Neurosurgery, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki 852-8501, Japan. ksuyama@nagasaki-u.ac.jp
authors.forename: Kazuhiko
authors.initials: K
authors.lastname: Suyama
authors.forename: Shingo
authors.initials: S
authors.lastname: Mizota
authors.forename: Tatsuya
authors.initials: T
authors.lastname: Minagawa
authors.forename: Kentaro
authors.initials: K
authors.lastname: Hayashi
authors.forename: Hisaya
authors.initials: H
authors.lastname: Miyazaki
authors.forename: Izumi
authors.initials: I
authors.lastname: Nagata
mesh_terms: D002343:Carotid Artery, Internal / Q000002:abnormalities*; D002533:Cerebral Angiography / Q000379:methods; D005260:Female; D006801:Humans; D002532:Intracranial Aneurysm / Q000150:complications* / Q000473:pathology*; D008875:Middle Aged; D020768:Middle Cerebral Artery / Q000002:abnormalities*; D014057:Tomography, X-Ray Computed / Q000379:methods