To establish quick 、 specific 、 nonvirulent detective method will be benefit to the early diagnosis of transitional cell carcinomo of renal pelvis, especially having important significance to monitor recurrence after treatment. 建立快速、特异、非侵入性的检测方法将有利于肾盂移行细胞癌的早期诊断,特别对治疗后监测复发有重要意义。