Endopyelopyelotomy: percutaneous surgery for ureteropelvic junction obstruction in a bifid pelvis: further experience.

A patient with a bifid pelvis and ureteropelvic junction obstruction of the lower system was managed successfully by endopyelopyelotomy. This percutaneous procedure consists of creation of an internal fistula between the 2 pelves by incision of the intervening tissue with an optical urethrotome. This procedure provided a satisfactory and reproducible result.