腎線維脂肪腫に続発したと思われる腎線維肉腫の1例

概要

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A 57-year-old woman had resection of fibrolipoma arising from the right renal capsule approximately two years prior to the admission of this time. The large mass in the right upper quadrant was surgically explored and the tumor of the right kidney was found. The kidney removed weighed 1,170 grams and measured 16.5×12.5×11.0 cm. In the center of the tumor mass the renal parenchyma and pelvis were embedded with normal appearance. They were histologically intact. The tumor was fibrosarcoma. At the time of operation mesenteric tumor invasion as well as enlarged lymph nodes was noted, but the postoperative course was uneventful. It was thought that the tumor in this case is a good sample of malignant change from fibrolipoma to fibrosarcoma. The literature was reviewed on renal fibrosarcoma. This is the 41st reported case of this tumor in Japan.
泌尿器科紀要刊行会の論文