A Case of an Intracranial Dissecting Aneurysm localized in the Anterior Cerebral Artery

Satoshi Yamaguchi; Shuichi Oki; Takashi Mikami; Yukihiko Kawamoto; Yoko Ito; Kentaro Kuwamoto

doi:10.7887/jcns.7.230

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A Case of an Intracranial Dissecting Aneurysm localized in the Anterior Cerebral Artery

Journal article

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A Case of an Intracranial Dissecting Aneurysm localized in the Anterior Cerebral Artery

Satoshi Yamaguchi, Shuichi Oki, Takashi Mikami, Yukihiko Kawamoto, Yoko Ito and Kentaro Kuwamoto

Japanese Journal of Neurosurgery, Vol.7(4), pp.230-234

1998

DOI: 10.7887/jcns.7.230

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Abstract

Reports concerning dissecting aneurysms have increased recently, but most of them are vertebrobasilar (VB) lesions. Anterior cerebral artery lesions are very rare. We report a case of an anterior cerebral artery (ACA) dissecting aneurysm. A 53-year-old man suddenly noticed motor weakness in his left lower limb and he was brought to our hospital by ambulance. Neurological examination revealed a left hemiparesis which was worse in the lower limb than in the upper limb. ACT scan showed a brain infarction in the territory of the right anterior cerebral artery. Cerebral angiography revealed a pearl and string sign and a double lumen sign in the right A2 to A3 segment. The distal part of the right ACA was stenotic. The brain infarction was considered to be due to a right anterior cerebral artery dissection. Twenty cases of the ACA dissecting aneurysm have been reported, and some of their characteristics have been obtained from past cases: (1) There is a male preponderance, with a male-to-female ratio of 9.5: 1; (2) The most frequent symptoms are headache and hemiparesis which is dominant in the lower limb. Not only patients with intracranial hemorrhage but also patients with brain infarction complain of severe headache; (3) On CT findings ischemia, rather than hemorrhage, is dominant; (4) The prognosis of this disorder is favorable when appropriate treatment is given. It is suggested that the clinical characteristics of ACA lesions are different from those of VB lesions.

Details

Title: Subtitle: A Case of an Intracranial Dissecting Aneurysm localized in the Anterior Cerebral Artery
Creators: Satoshi Yamaguchi - Hiroshima City Asa Hospital
Shuichi Oki - Department of Neurosurgery, Hiroshima City Asa Hospital
Takashi Mikami - Department of Neurosurgery, Hiroshima City Asa Hospital
Yukihiko Kawamoto - Department of Neurosurgery, Hiroshima City Asa Hospital
Yoko Ito - Department of Neurosurgery, Hiroshima City Asa Hospital
Kentaro Kuwamoto - Department of Neurosurgery, Hiroshima City Asa Hospital
Resource Type: Journal article
Publication Details: Japanese Journal of Neurosurgery, Vol.7(4), pp.230-234
DOI: 10.7887/jcns.7.230
ISSN: 0917-950X
eISSN: 2187-3100
Language: English
Date published: 1998
Academic Unit: Neurosurgery
Record Identifier: 9984303900102771

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