[Surgical treatment of congenital ureteral stenosis in children with double upper urinary tract].

Based upon the experience with the operative treatment of 178 children with congenital stenoses of ureters and double urinary tracts the authors consider the upper heminephroureterectomy to be the main operation in the stenosis of the terminal part of the extra ureter. In stenosis of the prepelvic part of the ureter many modifications of pyeloureteral anastomoses can be used.