Аннотация:Both ileal conduit of the bladder and ureterosigmoidostomy appear to be satisfactory methods of urinary diversion when neocystectomy is required following radical surgery for advanced pelvic cancer. Maintenance of adequate renal function and continued satisfactory radiographic visualization of the kidneys in such long-term (7 to 15 years) survivors is documented. The advantages and indications for these two techniques are discussed. When advanced pelvic cancer can be controlled by radical pelvic multivisceral resection, sacrifice of the urinary bladder and transplantation of normal or hydronephrotic renal units should not result in deterioration of renal function.