肾血管平滑肌脂肪瘤（RAL）是一种肾脏良性肿瘤，多发于肾实质。通过静脉肾盂造影、B超及CT三种影像学检查方法，对8例RAL检查结果对比分析，发现结果相差甚大。1临床资料1．1一般资料：8例病人，男2例，女6例。年龄26～56岁，平均41岁。左肾4例，右肾3例，双肾1例。病变单发6 Renal angiomyolipoma (RAL) is a benign kidney tumor that occurs mostly in the renal parenchyma. Through contrastive analysis of 8 RAL examination results by intravenous pyelography, B-ultrasonography and CT three imaging examination methods, the results were very different. 1 Clinical data 1.1 General information: 8 patients, 2 males and 6 females. Age 26 to 56 years old, an average of 41 years old. There were 4 cases of left kidney, 3 cases of right kidney and 1 case of double kidney. Single lesion 6