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Inner Ear Pathology of a Patient with Benign Paroxysmal Positional Vertigo Akira Kodama 1 1Department of Otolaryngology, Teikyo University, School of Medicine pp.149-156
Published Date 1981/3/20
DOI https://doi.org/10.11477/mf.1492209222
  • Abstract
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 Benign paroxysmal positional vertigo (BPPN) is one of the common vertiginous diseases, however, there is a lack of report of the temporal bone study of BPPN. The reports, available at present, do not convincingly explain characteristic positional or positioning nystagmus of this disease.

 In this paper the histopathological findings of the temporal bones of a patient who exhibited typical positional vertigo of benign paroxysmal type are reported. The main pathological findings were separation of otoconia from the otolithic membrane of the utricular and saccular macula, besides basophilic deposit on the cupula of the posterior semicircular canal. There was no diminution of the sensory cells and nerve fibers in each vestibular endorgans.

 These temporal bone findings indicate that vestibular disorder induced by positional or positioning provocation in BPPN of this case was caused by removal of otoconia from the otolithic macula of both ears.


Copyright © 1981, 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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