Repeated endoscopic treatments of multiple recurrent ureteral tumors following 15-year-long history of bladder tumors in the patient from endemic nephropathy region.

Ureteral urothelial tumors (UUT) are uncommon; their incidence is higher in areas affected by Balkan endemic nephropathy (BEN), with low-grade lesions prevalent. In these patients, the efficacy of conservative surgery is comparable to that of nephroureterectomy. Endoscopic treatment is indicated for single, small and low grade UUT, in older patients with significant comorbidity. The case of an 84-year-old lady from an area affected by BEN is presented. Over 20 years, the patient underwent five endoscopic interventions for multiple UUT, and numerous endoscopic interventions for recurrent bladder tumors. Among a highly select group of patients, endoscopic treatment of multiple small superficial low-grade ureteral tumors may prove successful.