Renal pelvic cancer and ureteral cancer are both upper urinary tract uroepithelial carcinomas, and their cells of origin are the same as those of bladder cancer. Clinical studies have found that many upper urinary tract uroepithelial cancers will develop secondary to bladder cancer after surgery, and conversely, the proportion of bladder cancer that develops secondary to upper urinary tract uroepithelial cancer after surgery is low. This puts more demands on the postoperative review of renal pelvic cancer and ureteral cancer.
1.Whether recurrence or metastasis after surgery: imaging examinations of abdomen, pelvis and chest (ultrasound, X-ray, CT and MRI, etc.); 2.Secondary bladder cancer: cystoscopy, urine exfoliation cytology.
Numerous studies have shown that the chance of secondary bladder cancer after surgery for renal pelvis and ureteral cancer is 20-31%, and most of them occur within 2 years after surgery, and the probability of recurrence varies slightly with different tumor characteristics. Common risk factors are: female, tumor diameter >3cm, number >3, history of bladder cancer, positive urinary exfoliative cytology. The more tumors that have risk factors, the greater the chance of bladder secondary bladder cancer. Since bladder cancer often has no typical symptoms, it is important to review cystoscopy and urinary exfoliative cytology regularly for early detection and better treatment results.