肛門管に扁平上皮内癌と腺腫が並存した粘膜脱症候群の1例 A Case of Early Squamous Cell Carcinoma (Carcinoma in Situ) Accompanied by an Adenoma and Mucosal Prolapse Syndrome in the Anal Canal

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肛門管の扁平上皮癌が上皮内癌の状態で発見されることは極めて稀である.今回,直腸粘膜脱を手術し,切除標本の検索の結果,肉眼的に指摘できない扁平上皮内癌を認めた例を経験した.症例は72歳の女性.30年前より排便時に出血を認め,2年前より粘膜の脱出もあり来院した.初診時,肛門の前壁に粘膜脱を認め,結紮切除術を施行した.切除した粘膜脱部を病理学的に検査したところ,歯状線の口側にほぼ接して5mmの扁平上皮内癌を認め,それの口側に接して腺腫を認め,さらに口側にビランを伴う粘膜脱の所見を認めた、肛門管の扁平上皮内癌が,肛門疾患の手術標本から偶然に発見されたという例は,本邦では本例が初めてなので報告した.

Reports on carcinoma in situ of squamous cell carcinoma of the anal canal are very rare. We experienced, however, a case with an incidentally discovered carcinoma in situ of squamous cell carcinoma during microscopic examination of anal tissue resected for treatment of a mucosal prolapse. We report it because this is the first case of clinically unsuspected carcinoma in situ in Japan. The patient was a 72-year-old female who had experienced bleeding during defecation for 30 years. Two years before, she experienced anal prolapse and came to our center. At the initial medical examination, a mucosal prolapse was found, and surgery was performed. The dissected mucosal prolapse was submitted for pathologic diagnosis, which found a squamous cell carcinoma, five mm in size, an located very close to the dentate line, and in contact with adenoma and mucosal prolapse.

収録刊行物

  • 日本大腸肛門病学会雑誌

    日本大腸肛門病学会雑誌 55(4), 175-178, 2002-04-01

    The Japan Society of Coloproctology

参考文献:  6件中 1-6件 を表示

被引用文献:  6件中 1-6件 を表示

各種コード

  • NII論文ID(NAID)
    10008582281
  • NII書誌ID(NCID)
    AN00195100
  • 本文言語コード
    JPN
  • 資料種別
    NOT
  • ISSN
    00471801
  • データ提供元
    CJP書誌  CJP引用  J-STAGE 
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