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Japanese

An Extracranial Aneurysm in the Distal Posterior Inferior Cerebellar Artery Located at the Tonsillomedullary Segment:Case Report and Review of the Literature Nao SHIMOOKA 1 , Shigenori TAKETSUNA 1 , Shiromaru ISHIDA 1 , Kensaku SENDA 1 , Masato KAWAI 1 1Wakakusa Dai-ichi Hospital Stroke Center Keyword: subarachnoid hemorrhage , posterior inferior cerebellar artery , extracranial aneurysm pp.715-722
Published Date 2017/8/10
DOI https://doi.org/10.11477/mf.1436203580
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 We report a rare case of subarachnoid hemorrhage(SAH)due to ruptured extracranial aneurysm originating at the caudal loop of the left posterior inferior cerebellar artery(PICA). A 50-year-old woman presented with severe headache and mild consciousness disturbance. Computed tomography(CT)revealed SAH and intraventricular hemorrhage. Vertebral angiography showed an extracranial aneurysm located on the tonsillomedullary segment of the left PICA. During the surgery, no vessel branches were confirmed near the aneurysm, and the aneurysm was successfully clipped through suboccipital craniotomy with C1 laminectomy. The patient showed significant recovery and was discharged without neurological deficit.


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

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