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INTRACRANIAL CHOLESTEROL CYST, REPORT OF A CASE Ryoho Uyeda 1 pp.965-970
Published Date 1979/11/20
DOI https://doi.org/10.11477/mf.1492208998
  • Abstract
  • Look Inside

 A 35-year-old male patient complained of swelling of the left supra-auricular region.

 The supra-auricular swelling was confirmed as cyst by palpation and needle aspiration.

 X-ray examination revealed a round perforation of the squamous part of the temporal bone, a space occupying mass above the pyramidal bone, destruction of the antral tegmentum and scaphoid erosion of the pyramidal surface.

 Temporal craniectomy showed a large cyst on the pyramidal surface and the cyst was connected with the cholesterol granuloma in the mastoid cavity.

 It was concluded that the mastoid cyst accompanied by the cholesterol granuloma extended into the intracranial space via tegmen antri and became a large cholesterol cyst.

 Some problems concerning causative factors of the cholesterol granuloma and the cholesterol cyst were briefly discussed.


Copyright © 1979, 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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