Fig. 1From: Can a second resection be avoided after initial thulium laser endoscopic en bloc resection for non-muscle invasive bladder cancer? A retrospective single-center study of 251 patientsTransurethral thulium laser en bloc resection of a bladder tumor. a Circular incision around the tumor, b exposure of the tumor base via blunt dissection, c coagulation of the base of resection, and d cold-cup biopsyBack to article page