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Japanese

A Case of Hydrocephalus Associated with Vestibular Schwannoma,Treated by Tumor Removal Seisaku KANAYAMA 1 , Michihiro KOHNO 2 , Kohichi OKAMURA 1 , Masanori YOSHINO 3 , Hiroshi SEGAWA 1 , Isamu SAITO 1 , Keiji SANO 1 1Department of Neurosurgery,Fuji Brain Institute and Hospital 2Department of Neurosurgery,Tokyo Metropolitan Police Hospital 3Department of Neurosurgery,Kanto Medical Center,Nippon Telephone East Corporation Keyword: hydrocephalus , vestibular schwannoma pp.391-395
Published Date 2006/4/1
DOI https://doi.org/10.11477/mf.1436100202
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A 57-year-old male presented with gait disturbance,urinary incontinence,dementia resembling symptom of normal pressure hydrocephalus (NPH) and was admitted to our institusion. A computerized tomographic scan (CT) and magnetic resonance imaging (MRI) revealed hydrocephalus as well as a tumor in the right cerebellopontine angle. We diagnosed communicating-type hydrocephalus associated with the vestibular schwannoma and tumor removal was performed prior to ventriculo-peritoneal (V-P) shunt. After surgery,symptoms of the patient disappeared promptly and cerebrospinal fluid protein elevation was normalized. One month after surgery,CT and MRI revealed reduction of the ventricle size and V-P shunt became unnecessary.

 Hydrocephalus is occasionally complicated by vestibular schwannoma. The majority results from obstruction of the cerebrospinal fluid (CSF) pathway by large tumors. But,small tumors also cause communicating-type hydrocephalus. Although the selection of the treatment is controversial,tumor removal without a shunt is considered as a good strategy for management of hydrocephalus associated with vestibular schwannoma.


Copyright © 2006, 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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