title: [Bilateral lower ureteral obstruction caused by aberrant blood vessels (umbilical ligament): a case report].
mesh_terms: D006801:Humans; D007223:Infant; D008297:Male; D014469:Umbilical Arteries / Q000002:abnormalities*; D014517:Ureteral Obstruction / Q000209:etiology* / Q000601:surgery