[Urinary system tumors in patients with endemic nephropathy on chronic hemodialysis].

We studied 161 patients who started dialysis from January 1st 1979 to December 31st 1993. Out of 79 males, 26 (32.91%) had the diagnosis of urothelial tumors, and out of these 22 patients (84.61%) had tumors of the upper urothelium. Twenty one (80.76%) of the patients were operated. The predialysis period starting with tumor diagnosing was 61.92 months averaging. The average survival of these hemodialysed patients was 46.07 months. Out of 82 females, 22 (26.82) had tumors of the urinary tract, and out of these 21 patients (95.45%) had tumors of the upper urothelium. Eighteen (81.81%) of them were operated. The predialysis period starting with tumor diagnosing was 84 months, on the average. The average survival was 37.39 months. The results confirm high frequency of tumors of the upper urothelium in patients with endemic nephropathy.