二次性真珠腫の3症例 Secondary Cholesteatoma : A Report of Three Cases

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著者

    • 戸田 直紀 TODA Naoki
    • 国立病院機構高知病院耳鼻咽喉科 Department of Otolaryngology, National Hospital Organization Kochi National Hospital
    • 大山 晴三 OHYAMA Seizo
    • 徳島大学医学部耳鼻咽喉科学教室 Department of Otolaryngology, University of Tokushima School of Medicine

抄録

Secondary cholesteatoma, an acquired open-typed cholesteatoma, is considered to be formed by disorderly migration of epidermis. The epidermis, which is activated by chronic inflammation, becomes to extend from the manubrium of the malleus at the center of a perforation of the tympanic membrane. The epidermis then passes along the inner surface of the tympanic membrane through the edge of perforation of an opentyped cholesteatoma. We reported 3 cases of secondary cholesteatoma. Patients 1 and 2 showed common characteristics of secondary cholesteatoma that have been reported: a large perforation of the tympanic membrane, long-term inflammation of the middle ear and an open-typed cholesteatoma extended from the manubrium of the malleus to the inner surface of the tympanic membrane. However, in patients 3 with a traumatic small perforation of the tympanic membrane, his secondary cholesteatoma seemed to be formed under a specific condition of severe persistent inflammation due to MRSA. After tympanoplasty, it is suggested that the epidermis folded on the inner surface of the tympanic membrane at the edged of the perforation was activated by MRSA inflammation and extended to form an open-typed cholesteatoma.

収録刊行物

  • Otology Japan  

    Otology Japan 16(5), 606-610, 2006-12-25 

    THE JAPAN OTOLOGICAL SOCIETY

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各種コード

  • NII論文ID(NAID)
    10021296794
  • NII書誌ID(NCID)
    AN10358085
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    09172025
  • データ提供元
    CJP書誌  CJP引用  J-STAGE 
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