title: [Direction and angulation of the extra-hepatic ducts in pancreatic and ampullar tumors: radiological sign for the differential diagnosis. Analysis of 47 cases by transparietal-hepatic cholangiography].
mesh_terms: D014670:Ampulla of Vater / Q000000981:diagnostic imaging*; D001650:Bile Duct Neoplasms / Q000000981:diagnostic imaging*; D002277:Carcinoma / Q000000981:diagnostic imaging*; D002758:Cholangiography; D003937:Diagnosis, Differential; D005069:Evaluation Studies as Topic; D006801:Humans; D008722:Methods; D010190:Pancreatic Neoplasms / Q000000981:diagnostic imaging*
vernacular_title: Direção e angulaçcoes dos ductos extra-hepáticos nos tumores do pâncreas e da papila: sinal radiológico para o diagnóstico diferencial. Análise de 47 casos pela colangiografia transparieto-hepática