肾结石合并肾盂癌并不常见，我们曾遇2例，报告如下。例1；男，50岁。因反复左腰部疼痛伴肉眼血尿15年入院。静脉肾盂造影检查示：I．左肾益结石并积水；2．左输尿管中段结石。膀脱镜逆行左输尿管插管进入15cm受阻。术中见肾周脂肪纤维化，增厚约scm，输尿管上段及肾盂壁均增厚 Kidney stones associated with renal pelvis cancer is not common, we have encountered two cases, the report is as follows. Example 1; male, 50 years old. Due to repeated left lower back pain with gross hematuria 15 years admitted. Intravenous pyelography showed: I. Left kidney Yi stones and water; 2. Left ureteral stones. Laparoscopic retrograde left ureter intubation into 15cm blocked. Intraoperative see perirenal fat fibrosis, thickened about scm, upper ureter and renal pelvic wall thickening