[症例報告]A HUGE RENAL ANGIOMYOLIPOMA MIMICKING A RETROPERITONEAL SARCOMA : A CASE REPORT

概要

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A case of renal angiomyolipoma which mimicked a retroperitoneal sarcoma and presented a diagnostic problem is reported. The patient was a 63-year-old female who complained of right flank mass with no other accompanying symptoms. The US and CT demonstrated a huge mass in the retropentoneum and near the lower pole of the right kidney. A selective right renal arteriogram showed stretched out feeding arteries outlining the huge tumor with tumor stains at the venous phase. An inferior venocavogram revealed a compressed segment by the tumor. At operation, the tumor was found to originate in the lower pole of the right kidney. It was oblong in shape, 16×15×9cm in size and 1,800gm in weight with a massive central necrosis on cut sections. Histologically, the tumor was composed of a mixture of the mature fatty tissue, thick-walled vessel and smooth muscle. The smooth muscle cells showed pleomorphism and mitoses like leiomyosarcoma with no evidence of capsular invasion. The final pathological diagnosis was renal angiomyohpoma. The patient has been doing well 6 months after surgery.
琉球大学医学部の論文
1986-00-00