MATERIALS AND METHODS: From September 1992 to March 2002 at our institution, 69 patients underwent surgical treatment for a unilateral solitary renal tumor with a normal contralateral kidney.

• 材料与方法：从1992年9月到2002年3月，共有69位因单侧肾脏肿瘤但其对侧为正常肾脏的病人在本院接受手术治疗。