title: [Intraductal ampulloma: problems of differential diagnosis].
mesh_terms: D000368:Aged; D014670:Ampulla of Vater; D003138:Common Bile Duct Neoplasms / Q000175:diagnosis*; D003937:Diagnosis, Differential; D042882:Gallstones / Q000175:diagnosis*; D006801:Humans; D008297:Male
vernacular_title: Ampuloma intraductal: problemas de diagnóstico diferencial.