Objective:To verify the safety and feasibility of applying laparoendoscopic single-site surgery(LESS)in the treatment of urological tumors.Methods:From Oct 2009 to Aug 2012,we used LESS surgery technique to treat seven prostate cancer cases,four kidney tumor cases(one right,three left),one left renal pelvic cancer case,one left ureteral cancer case and 12 adrenal tumor and cyst cases.The radical prostatectomy was preformed through extra-peritoneal approach in first six cases and trans-peritoneal approach in...