title: [Retrocaval ureter: considerations on 6 cases].
mesh_terms: D000293:Adolescent; D000328:Adult; D006801:Humans; D008297:Male; D008875:Middle Aged; D009392:Nephrectomy; D014517:Ureteral Obstruction / Q000000981:diagnostic imaging / Q000601:surgery; D014567:Urography; D014682:Vena Cava, Inferior / Q000000981:diagnostic imaging
vernacular_title: Ureter retrocava: considerações sobre 6 casos