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KMID : 1001020100080020092
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Korean Journal of Urological Oncology
2010 Volume.8 No. 2 p.92 ~ p.95
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Sarcomatoid Urothelial Carcinoma of the Ureter with Leiomyosarcomatous Elements
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Yim Kwang-Il
Lee Yong-Seok
Ku Young-Mi
Shin Ok-Ran
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Abstract
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Sarcomatoid urothelial carcinoma is a rare malignant tumor with a poor prognosis. We experienced a case of sarcomatoid urothelial carcinoma of the ureter that protruding into the urinary bladder in 55-year old woman. She underwent total nephrouretectomy with bladder cuff resection. Pathologically, the mass consisted of high grade urothelial cell carcinoma component and sarcomatoid cell component and we could find transitional zone of two cell groups. In immunohistochemical study, sarcomatoid cell group showed positive reactions for smooth muscle actin and vimentin. Therefore sarcomatoid cell component showed leiomyosarcomatous differentiation, so we can diagnosed this tumor as sarcomatoid urothelial carcinoma with heterologous elements of leiomyosarcoma.
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KEYWORD
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Urothelial carcinoma, Ureter, Leiomyosarcoma
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