後腹膜出血にて発症した腎血管筋脂肪種

47歳男, 左側腹部痛を主訴に入院した.画像診断上, 腎血管筋脂肪腫とその破裂による後腹膜血腫がもっとも疑われ, 迅速診断の上, 血腫除去と摘出術が行われたWe report a case of renal angiomyolipoma with retroperitoneal hemorrhage treated by enucleation in a 47 year-old male. The mass in the anterior side of the left kidney, revealed by sonography and CT, was diagnosed as angiomyolipoma with a retroperitoneal hematoma caused by its spontaneous rupture. Removal of hematoma and enucleation of the tumor were performed after the diagnosis. Diagnosis and treatment of ruptured renal angiomyolipoma are discussed