The Joint Unit of the Chinese Academy of Medical Sciences 1 article published in JoVE Medicine Technical Modification of the Terminal Ureter During Total Transperitoneal Laparoscopic Nephroureterectomy for Upper Urinary Tract Urothelial Carcinoma Chunlong Fu*1,2, Yaqun Zhang*1, Xin Wang1, Shengcai Zhu1, Huimin Hou1, Shengjie Liu1, Cheng Pang1, Xinda Song1, Jia Chen1, Jianye Wang1, Ming Liu1,2 1(Urology) Beijing Hospital, National Center of Gerontology, The Joint Unit of the Chinese Academy of Medical Sciences, 2Graduate School of Peking Union Medical College, Beijing Hospital Here, we present a protocol to increase the surgical field of view and reduce the difficulty of total transperitoneal laparoscopic nephroureterectomy surgery by precutting the umbilical ligament before treating the terminal ureter.