A CASE OF PINEALOMA WITH MIDBRAIN DEAFNESS

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  • KIRIKAE I.
    The Department of Oto-Rhino-Laryngology,Faculty of Medicine,University of Tokyo
  • SATO T.
    The Department of Oto-Rhino-Laryngology,Faculty of Medicine,University of Tokyo

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Other Title
  • 中脳性難聴をきたした松果体腫瘍の一例
  • チュウ ノウセイ ナンチョウ オ キタシタ ショウカタイ シュヨウ ノ イチレイ

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Abstract

The authors reported a case of pinealoma of a 8 years old boy, who had an uneven form of bilateral hearing impairments, especially on the left side. At the time of autopsy, the degeneration of the corpus geniculatum mediale, bra- chium colliculi caudalis and lemniscus lateralis due to the presence of the tumor were revealed on the right side. These findings led us to the following conclusions: 1.This case has a type of midbrain deafness. 2.The crossed and the uncrossed central auditory pathways are almost equivalent with respect to auditory acuity. 3.The auditory pathways cross mainly through the trapezoid body.

Journal

  • Nippon Jibiinkoka Gakkai Kaiho

    Nippon Jibiinkoka Gakkai Kaiho 60 (10), 1357-1362, 1957

    Japanese Society of Otorhinolaryngology-Head and neck surgery

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