目的　评估保留肾单位手术治疗肾肿瘤的效果。方法　 1995年 4月～ 2 0 0 1年 5月 ,采用保留肾单位手术治疗肾肿瘤 18例。恶性 3例 ,良性 15例。孤立肾 1例 ,17例单侧肿瘤对侧肾正常。肿瘤直径 1.0～ 8.0cm ,平均 3.5cm。 17例行部分肾切除术 ,1例行肿瘤剜除术。结果　 18例手术成功 ,随访 2～ 72个月 ,平均 32个月 ,未发现并发症和肿瘤复发。结论　保留肾单位治疗肾肿瘤安全有效 ,其临床应用越来越广 Objective To evaluate the effect of preserving nephron in the treatment of renal tumors. Methods From April 1995 to May 2001, 18 cases of renal neoplasms were treated by nephron-preserving surgery. 3 cases of malignant, benign in 15 cases. One case of isolated kidney and 17 cases of unilateral tumor contralateral kidney normal. Tumor diameter 1.0 ~ 8.0cm, an average of 3.5cm. 17 cases of partial nephrectomy, 1 case of tumor resection. Results 18 cases of successful surgery, followed up for 2 to 72 months, an average of 32 months, no complications and tumor recurrence was found. Conclusion It is safe and effective to retain nephron in the treatment of renal tumors, and its clinical application is more and more widely