外耳道 chondroid syringoma 例 Chondroid Syringoma of the External Auditory Canal : A Case Report

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Chondroid syringoma (so-called mixed tumor) of the skin is usually a firm or polypoid tumor and histologically composed of epithelial components, showing glandular or ductal differentiations, and myxoid or chondroid stroma. Eighty to ninety percent of chondroid syringoma of the skin occur in the head and neck region, particularly around the nose. Chondroid syringoma of the external auditory canal is extremely rare. We report a case of chondroid syringoma in a 60-year-old man, who presented with a solid tumor in the left external auditory canal. The tumor was totally excised along with the overlying skin. Histologically, the tumor consisted of ducts with lumina of varying sizes lined by two or several layers of epithelial cells. Glandular ductal sizes were large or small, and large ducts are cystic. There are aggregates of eosinophilic collagen fiber and basophilic mucoid in the stroma. Those lead this case to the diagnosis of chondroid syringoma. We report a rare case of chondroid syringoma of the external auditory canal.

収録刊行物

  • 耳鼻咽喉科臨床  

    耳鼻咽喉科臨床 101(6), 441-443, 2008-06-01 

    The Society of Practical Otolaryngology

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各種コード

  • NII論文ID(NAID)
    10021294783
  • NII書誌ID(NCID)
    AN00107089
  • 本文言語コード
    JPN
  • 資料種別
    NOT
  • ISSN
    00326313
  • NDL 記事登録ID
    9531825
  • NDL 雑誌分類
    ZS43(科学技術--医学--耳鼻咽喉科学)
  • NDL 請求記号
    Z19-421
  • データ提供元
    CJP書誌  CJP引用  NDL  J-STAGE 
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