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Dissecting Aneurysm of the Posterior Inferkor Ceroebellar Artery;A case repirt Isao TAKAHASHI 1,3 , Haruo TAKAMURA 1 , Satoshi GOTOH 1 , Hiroshi SASAKI 1 , Kenichi MAKINO 1 , Nozomi SUZUKI 1 , Isao NISHIHARA 1 , Tatsuya ISHIKAWA 1 , Masakatsu ANDOH 2 1Department of Neurosurgery,Asahikawa Reol Cross Hospital 2Department of Pathology,Asahikawa Red Cross Hospital Keyword: Dissecting Aneurysm , Posterior Inferkor Ceroebellar artery , Subarachnoid hemorrhage , Giant cell angiitis pp.277-281
Published Date 1992/3/10
DOI https://doi.org/10.11477/mf.1436900419
  • Abstract
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A case of a dissecting aneurysm of the left posterior inferior cerebellar artery caused by giant cell angiitis is presented. A 22-year-old woman was admitted on Au-gust 30, 1990, with sudden onset of severe occipital headache and vomiting. Neurological examination on admission only showed severe meningismus. CT scan demonstrated subarachnoid hemorrhage and a small hematoma in the 4th ventricle. A left vertebral angio-gram demonstrated that the left posterior inferior cere-bellar artery was occluded at the lateral medullary seg-ment. We diagnosed subarachnoid hemorrhage from a dissecting aneurysm. On the day following admission, the patient underwent a left suboccipital craniectomy.The posterior inferior cerebellar artery was enlarged for a distance of about 8 mm and there was typical pur-plish-red appearance in the dissecting aneurysm. This aneurysm was excised after trapping. The histological diagnosis was primary localized giant cell angiitis with-out systemic involvement. The etiology of the intracra-nial dissecting aneurysm is obscure, but this report sug-gests that cerebral angiitis can be considered as an im-portant factor.


Copyright © 1992, Igaku-Shoin Ltd. All rights reserved.

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電子版ISSN 1882-1251 印刷版ISSN 0301-2603 医学書院

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