BERKELEY, CA (UroToday.com) - The endoscopic treatment of non-muscle invasive bladder cancer (NMIBC) patients in general, and in cases of patients with large bladder tumors, in particular, is still marked by the potential hazards of bladder wall perforation, intra- and postoperative bleeding (eventually requiring blood transfusions or re-intervention), urinary retention by blood clots and obturator nerve stimulation, mostly specific to the lateral wall location.