Cancerous ureteral stenosis

Ureteral tumors can be divided into benign and malignant according to the nature of the tumor. Benign ureteral tumors such as polyps, malignant tumors such as transitional cell carcinoma, transitional cells with squamous cell carcinoma, and mucinous carcinoma. Clinically, ureteral tumors are rare. The age of onset is 20 to 90 years, with more men than women, about 4: 1. Primary ureteral tumors originate from the ureter itself, most of which are malignant tumors, and most of them (90%) are transitional cell carcinomas.

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