作者对6例肾细胞癌肾盂或输尿管转移患者作了放射学检查,其中5例癌肿涉及肾静脉,3例侵犯淋巴管。男性较多见,资料及文献复习均表明原发肿瘤位于左侧者较易发生输尿管和肾盂转移,这是因为左肾静脉周围发育良好的侧支循环可能为肾细胞癌的早期静脉播散提供了途径。一般认为大多数输尿管残端复发瘤是由于肿瘤细胞的静脉逆行播 The authors performed radiological examinations on 6 patients with renal cell carcinoma of the renal pelvis or ureter, 5 of which involved renal veins and 3 infiltrated lymph vessels. Men are more common, data and literature review showed that the primary tumor is more prone to the left ureter and renal pelvis metastasis, because the well-developed collateral circulation around the left renal vein may provide early venous dissemination of renal cell carcinoma The way. Generally believed that the majority of ureteral stump recurrence tumor is due to the venous retrograde sowing of tumor cells