Obstruction of the lower ureter by the distal hypogastric (umbilical) artery.
D001158:Arteries / Q000601:surgery; D003937:Diagnosis, Differential; D006801:Humans; D007231:Infant, Newborn; D008297:Male; D014469:Umbilical Arteries; D014470:Umbilical Cord / Q000601:surgery*; D014517:Ureteral Obstruction / Q000000981:diagnostic imaging*; D014567:Urography