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Korean J Urol Oncol > Volume 8(2); 2010 > Article
The Korean Journal of Urological Oncology 2010;8(2): 92-95.
요관에 발생한 평활근육종 분화를 보인 육종양 요로상피암
임광일, 이용석1, 구영미2, 신옥란
가톨릭대학교 의과대학 의정부성모병원 병원병리학교실, 1비뇨기과학교실, 2영상의학교실
Sarcomatoid Urothelial Carcinoma of the Ureter with Leiomyosarcomatous Elements
Kwang Il Yim , Young Seok Lee 1, Young Mi Ku 2, Ok Ran Shin
Department of Hospital Pathology, 1Urology and 2Radiology, Uijeongbu St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Uijeongbu, Korea
Published online: August 1, 2010.
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. (Korean J Urol Oncol 2010;8:92-95)
Key Words: Urothelial carcinoma; Ureter; Leiomyosarcoma
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