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Malignant Mesodermal Mixed Tumor of the Bladder : A Case Report

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タイトル: Malignant Mesodermal Mixed Tumor of the Bladder : A Case Report
著者: Mwinyimtwana, Ahmed Makata / Toriyama, Kan / Eto, Hideaki / Itakura, Hideyo / Iwamoto, Masanori
発行日: 1993年12月27日
出版者: 長崎大学熱帯医学研究所 / Institute of Tropical Medicine, Nagasaki University
引用: 熱帯医学 Tropical medicine 35(3). p111-118, 1993
抄録: We report an autopsy case of malignant mesodermal mixed tumor of the urinary bladder of a 67 year old male. He had been admitted to Kita Hospital under the diagnosis of Alzheimer's disease since 1979. His dementia aggravated and he was confined to bed in 1985. While in the hospital, he developed hematuria and calculi and necrotic materials were sometimes noticed in his urine. Although the CT scan and intravenous urography revealed left hydronephrosis and vesical lithiasis, urinary cytological studies showed no remarkable changes. At the beginning of September 1992, he was found to have a child's fist-sized tumor in his left lower abdominal cavity, which was diagnosed as a bladder tumor and left renal pelvic tumor. The tumor grew rapidly and reached a child's head-size within 3 months. Several cytological examinations of his urine were performed, but all showed negative for malignancy. There was no tumor response against anti-cancer chemotherapy and he died on November 22, 1992. Autopsy revealed a bulky tumor mass which occupied the whole lower abdominal cavity. Histologically, the tumor was composed of an epithelial element of well differentiated squamous cell carcinoma and a non-epithelial element of rhabdomyosarcoma. The cross striations in rhabdomyosarcoma cells were clearly stained by PTAH. Immunohistochemically, rhabdomyosarcoma cells were positively stained by Desmin and partially by Vimentin. Therefore we diagnosed this tumor as malignant mesodermal mixed tumor of the urinary bladder.
URI: http://hdl.handle.net/10069/4630
ISSN: 03855643
資料タイプ: Departmental Bulletin Paper
出現コレクション:第35巻 第3号

引用URI : http://hdl.handle.net/10069/4630



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