Inclusion Criteria:  >18 years old. Polypoid / sessile primary tumor. < 3 tumors Tumor size 10 - 30 mm.  Exclusion Criteria:  > 4 tumors Size of the largest tumor <1 cm and> 4 cm. Tumor located in the bladder dome. No visualization of the ureteral meatus. Flat or in situ tumor. Non-urothelial tumors. Clotting disorder or treatment with oral anticoagulants.