肾血管平滑肌脂肪瘤又名肾错构瘤,过去被认为是一种少见的肾脏良性肿瘤,在诊断上很难与肾癌鉴别,往往在肾切除后才得以确诊。近年来,随着Ｂ超、ＣＴ等新技术在临床上的应用,绝大多数病人在术前能够得到明确诊断,大大增加了手术保留肾脏的机会。该病的发现亦有增多的趋势,有文献 Renal vascular smooth muscle lipoma, also known as renal hamartoma, used to be considered as a rare benign renal neoplasm. It is difficult to diagnose renal cell carcinoma in diagnosis and is often diagnosed only after nephrectomy. In recent years, with the B-ultrasound, CT and other new technologies in clinical application, most patients can be diagnosed before surgery, greatly increasing the chance of surgery to retain the kidneys. The discovery of the disease has also increased, there is literature