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Japanese

NEUROTOLOGICAL CONSIDERATIONS UPON THE EARLY DIAGNOSIS OF AN ACOUSTIC NEURINOMA R. Uyeda 1 pp.275-281
Published Date 1968/4/20
DOI https://doi.org/10.11477/mf.1492203934
  • Abstract
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 Two cases of acoustic neurinoma are presented. The first case showed horizontal nystagmus to the right with the eyes closed, a reduced caloric response, and an enlarged internal auditory canal. A small tumor confined to the internal auditory canal was revealed by operation. Histological study of the tumor showed a typical acoustic neurinoma.

 The second case showed bilateral gaze nystagmus at the end position, horizontal nystagmus to the right (the diseased side), moderately reduced caloric response and slight destruction of the petrous pyramid. A comparatively large tumor extending to the right oculomotor nerve level of the brain stem was found by operation.

 Both cases showed an almost normal auditory and oculomotor functions.

 The important findings for the early diagnosis are discussed from the neurotological point of view.


Copyright © 1968, Igaku-Shoin Ltd. All rights reserved.

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電子版ISSN 印刷版ISSN 0386-9679 医学書院

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