女子尿道悪性黒色腫の1例

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86歳女.既往に脳梗塞があり,外尿道口に易出血性の腫瘤がみられた為入院した.外陰部で外尿道口6時方向に1cm大の黒褐色腫瘤を認め,両側鼠径部に径2cm大のリンパ節腫脹が認められた.痴呆がある為腫瘍の生検術のみを施行,悪性黒色腫と診断した.4ヵ月後の現在まで症状なく生存中であるThe 20th case of primary malignant melanoma of the female urethra in the Japanese literature is reported. An 86-year-old woman presented with urethral bleeding. A hemorrhagic cheery-sized mass was identified at the urethral meatus, which extended into the vaginal mucosa, and was diagnosed as malignant melanoma after biopsy. Surgical treatment was abandoned because she had dementia and bilateral inguinal lymphadenopathy. She had no symptoms during the following 4 months.