下大静脈腫瘍塞栓を伴う腎細胞癌に対する腎動脈塞栓術後,肺動脈塞栓にて急死した1例

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We report a 42-year-old renal-transplanted man with renal cell carcinoma (RCC) in the native kidney. He was admitted with gross hematuria and general fatigue as the chief complaint. Ultrasonography, computed tomography, magnetic resonance imaging and angiography, revealed a right RCC with intracaval tumor thrombus extending to the level of hepatic veins. Since selective renal angiography demonstrated a hypervascular tumor, angio-embolization was performed preoperatively. However, he died suddenly the next morning despite aggressive resuscitative measures. Autopsy revealed bilateral pulmonary arteries obstructed by the tumor thrombus. Renal arterial embolization is useful for advanced RCC, and side effects are mostly transient and well tolerated by the patients. However, indications for angio-embolization should be selected carefully with such a fatal case as this patient kept in mind.