复习报告２１例肾血管平滑肌脂肪瘤（ＡＭＬ）的临床资料。年龄３１～７０岁（平均４４．５岁）。常见症状为腰、腹疼痛、包块、血尿、发热。２例有典型结节性硬化病的征象。临床上主要依据Ｂ超和ＣＴ检查诊断肾ＡＭＬ。资料表明，Ｂ超结合ＣＴ检查使术前诊断的准确性明显提高。肾ＡＭＬ常表现为Ｂ超强回声和ＣＴ低密度影团块。本组１１例行肾切除，但７例行保肾手术，３例随访，治疗效果同样良好。由于术前能诊断，肾ＡＭＬ的治疗趋向采用保肾手术或随访观察。 Review of 21 cases of renal angiomyolipoma (AML) clinical data. Age 31 to 70 years (mean 44.5 years old). Common symptoms of lumbar, abdominal pain, mass, hematuria, fever. Two cases had typical signs of tuberous sclerosis. Clinically based on B-ultrasound and CT examination of renal AML diagnosis. Data show that B-ultrasound combined with CT examination of the accuracy of preoperative diagnosis was significantly improved. Renal AML often presents as B-echo and CT low density clumps. The group of 11 cases of nephrectomy, but 7 cases of kidney surgery, 3 cases were followed up, the treatment effect is equally good. Due to preoperative diagnosis, the treatment of renal AML tend to use kidney surgery or follow-up observation.