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Japanese

Management of Acoustic Neurinoma with Preserved Hearing Akio MORITA 1,4 , Takanori FUKUSHIMA 1 , Shinichiro MIYAZAKI 1 , Teruaki TAMAGAWA 1 , Yasuo SIMIZU 2 , Masayuki ATSUJI 3 1Department of Neurosurgery, Mitsui Memorial Hospital 2Department of Neurosurgery, Kanto Noshinkeigeka Hospital 3Department of Neurosurgery, Atsuji Noshinkeigeka Hospital Keyword: Acoustic neurinoma , Hearing preservation , Nearly total resection , Labyrinthine artery , Early diagnosis pp.821-829
Published Date 1987/8/10
DOI https://doi.org/10.11477/mf.1436202448
  • Abstract
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Six cases of acoustic neurinoma (AT) with preoper-atively preserved hearing are presented. Their clinical features and surgical management for hearing preserva-tion are discussed.

Presenting symptoms were hearing decrease in 3 cases ( # 1, # 2, # 6), trigeminal neuralgia in 3 cases ( # 4, # 5, # 6), and hemifacial spasm in case # 2. Case # 3 was an incidentally diagnosed case by CT scan. Preoperative decrease of hearing in the affected ears ranged from 10 dB to 60 dB. In all cases except for case # 1, CT scans revealed CP angle tumors sized 1 - 4 cm in diameter.


Copyright © 1987, 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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