Primary obstructive mega-ureter.
D000367:Age Factors; D002648:Child; D002675:Child, Preschool; D004106:Dilatation; D005260:Female; D006801:Humans; D007223:Infant; D008297:Male; D012092:Replantation; D014513:Ureter / Q000601:surgery; D014517:Ureteral Obstruction / Q000473:pathology / Q000601:surgery; D014567:Urography; D014718:Vesico-Ureteral Reflux / Q000517:prevention & control