Urinary diversion after cystectomy: cutaneous ureterostomy: 17/77 cases (22.1%); extracorporeal urinary diversion by ileal conduit: 22/77 cases (28.6%); extracorporeal orthotopic neobladder (Hautmann): 26/77 cases (33.8%); intracorporeal orthotopic neobladder (Gaston): 12 / 77 cases (15.6%).