A Dissecting Aneurysm of the Anterior Cerebral Artery : A Case Report and a Review of the Literature

Abstract

The authors report the case of a dissecting aneurysm of the anterior cerebral artery in a 37-year-old man, who was admitted to hospital because of left hemiparesis following a minor head injury. While undergoing clinical examinations, a CT scan revealed an area of low density corresponding to the territory of the right anterior cerebral artery. Further, a right carotid angiogram showed the dilatation of the A2 segment with a double lumen and a narrowing proximal to and distal to this dilatation. This patient was treated conservatively, and was discharged without any neurological deficits two months later. A dissecting aneurysm of the anterior cerebral artery is rare with only 10 previously cases having been reported in the literature. The clinical features, angiographic findings, and etiology of these cases are reviewed.