title: [Diagnostic value of intravenous urography and ascendent pyelography in retroperitoneal tumors].
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D002675:Child, Preschool; D003287:Contrast Media / Q000008:administration & dosage; D005260:Female; D006801:Humans; D007275:Injections, Intravenous; D008297:Male; D008875:Middle Aged; D012186:Retroperitoneal Neoplasms / Q000000981:diagnostic imaging*; D014567:Urography / Q000379:methods*
chemical_list: D003287:Contrast Media
vernacular_title: Valor diagnóstico de la U.I.V. y pielografía ascendente en los tumores retroperitoneales.