重複中大脳動脈起始部の脳動脈瘤の1例

概要

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A case of duplication of the middle cerebral artery and an aneurysm at its origin is described. The patient, a 74-year-old male, was hospitalized following a head injury. A computed tomography scan showed intraventricular and subarachnoid hemorrhages. Carotid and vertebral angiograms revealed no vascular abnormalities causative of the hemorrhages. However, duplication of the middle cerebral artery and a saccular aneurysm at its origin were coincidentally observed on the right side. Craniotomy was performed 3 weeks later, and the duplication was confirmed. The neck of the unruptured aneurysm was clipped. Of the 55 reported cases of duplication of the middle cerebral artery, only six were associated with an aneurysm at the origin. The possible etiologies of such aneurysms are discussed
日本脳神経外科学会の論文
1988-09-15