Ｒｏｂｓｏｎ 1996年提出的肾肿瘤根治性切除术因患者生存期长而被认为是局限性肾肿瘤的标准外科治疗方法。由于超声、ＣＴ和核磁共振检查技术的应用 ,无症状偶发性肾癌的检出率增加。这些检查技术同时还能提供肾肿瘤局部被膜、静脉及转移病变信息。为探索对小的肾癌采用保留更 Radical nephrectomy proposed by Robson in 1996 was considered a standard surgical treatment of localized renal tumors because of its long survival. Due to the application of ultrasound, CT and MRI, the detection rate of asymptomatic sporadic renal cell carcinoma increased. These examinations also provide information about the presence of local capsular, venous and metastatic lesions in kidney tumors. To explore the use of small kidney cancer reservations more