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Teratoma of the Middle Ear and Mastoid with Malformation of the Mliddle and External Ear Michio Suehiro 1 1Department of Otolaryngology, Okayama University Medical School pp.717-724
Published Date 1987/9/20
DOI https://doi.org/10.11477/mf.1492210368
  • Abstract
  • Look Inside

 An 11-year-old boy presented with congenital malformation of the sound conducting apparatus, (auricular deformity, narrow external meatus and ossicular anomaly) of the both ears.

 He had lateral semicircular canal fenestration of the right car at age 3. During contemplated reconstructive surgery of the left ear, a tumor in the middle ear and mastoid cavity was found.

 Histopathological study of the tumor revealed teraloma with 2 germ layers, both ectodermal and mesodermal.

 A review of the literature revealed 3 previously reported cases of teratoma of the middle ear and mastoid cavity.


Copyright © 1987, 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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