Materials and Methods: From December 30th 2016 to October 31st 2017, eleven patients suffering from TCC bladder tumors with indication of radical cystectomy had transurethral resection of bladder tumor for diagnosis followed by robot-assisted radical cystectomy and ileal urinary diversion or extracorporeal or intracorporeal orthotopic neobladder using the robot da Vinci™ Si system with four arms.