in most cases , surgery was carried out between 1 and 3 months of age : total or partial nephrectomy ( mainly for multicystic dysplasia and ureteral duplication with a ureterocele or ectopia ) , and usually conservative surgery ( resection of the pyelo-ureteral junction , uretero-vesical implantation because of reflux or mega-ureter ) .
C0041960
ureterocele
C0041951
ureter