In the cases of upper urinary tract carcinoma associated with bladder carcinoma, higher grade malignancy and lower ureter carcinoma the recurrence rate was higher and usually occurred within 3 years.

上尿路移行细胞癌合并膀胱癌、肿瘤恶性程度高及输尿管下段癌其术后膀胱癌的再发率高，再发时间多在术后3年以内。

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Others are treated with ureteroscopy, in which a scope is passed through the urethra and bladder and up the ureter into the kidney.

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