Agenesis of the left internal carotid artery associated with anterior communicating artery aneurysm: case report.
We present a rare case of agenesis of the left internal carotid artery in a 43-year old woman, associated with an aneurysm of the anterior communicating artery and presenting with subarachnoid hemorrhage. The left internal carotid artery was not visualized on the left carotid angiogram. The left middle cerebral artery was perfused from the basilar artery via the dilated posterior communicating artery on vertebral angiogram. Absence of the left carotid canal was proven on temporal bone computed tomography. Absence of the left internal carotid artery was verified at operation. Absence of internal carotid artery is discussed in relation to aneurysm formation.
Haydarpaşa Numune Hospital, Neurosurgery Department, Istanbul, Turkey.
Metin
M
Orakdöğen
Zafer
Z
Berkman
Mehmet
M
Erşahin
Necat
N
Biber
Hakan
H
Somay
D000328:Adult; D020771:Anterior Cerebral Artery / Q000002:abnormalities* / Q000000981:diagnostic imaging / Q000503:physiopathology; D001164:Arteriovenous Fistula / Q000000981:diagnostic imaging / Q000209:etiology* / Q000503:physiopathology; D002343:Carotid Artery, Internal / Q000002:abnormalities* / Q000000981:diagnostic imaging / Q000503:physiopathology; D002560:Cerebrovascular Circulation / Q000502:physiology; D005260:Female; D006801:Humans; D006849:Hydrocephalus / Q000209:etiology / Q000473:pathology; D013345:Subarachnoid Hemorrhage / Q000000981:diagnostic imaging / Q000209:etiology / Q000503:physiopathology; D014057:Tomography, X-Ray Computed