title: A Challenging Diagnosis for a Biliary Stricture.
authors.affiliation: Endoscopy Service, Department of Diagnostic and Therapeutic Services, Istituto Mediterraneo per i Trapianti e Terapie ad alta specializzazione (IRCCS - ISMETT), Palermo, Italy.
authors.forename: Luca
authors.initials: L
authors.lastname: Barresi
authors.affiliation: Endoscopy Service, Department of Diagnostic and Therapeutic Services, Istituto Mediterraneo per i Trapianti e Terapie ad alta specializzazione (IRCCS - ISMETT), Palermo, Italy.
authors.forename: Dario
authors.initials: D
authors.lastname: Ligresti
authors.affiliation: Endoscopy Service, Department of Diagnostic and Therapeutic Services, Istituto Mediterraneo per i Trapianti e Terapie ad alta specializzazione (IRCCS - ISMETT), Palermo, Italy.
authors.forename: Mario
authors.initials: M
authors.lastname: Traina
mesh_terms: D000368:Aged; D002760:Cholangiopancreatography, Endoscopic Retrograde; D002779:Cholestasis / Q000000981:diagnostic imaging / Q000209:etiology*; D003135:Common Bile Duct / Q000000981:diagnostic imaging; D003251:Constriction, Pathologic; D003937:Diagnosis, Differential; D020698:Duodenoscopes; D006526:Hepatitis C / Q000150:complications* / Q000175:diagnosis; D006801:Humans; D006975:Hypertension, Portal / Q000175:diagnosis / Q000209:etiology*; D008103:Liver Cirrhosis / Q000175:diagnosis / Q000209:etiology*; D008297:Male; D011237:Predictive Value of Tests; D014057:Tomography, X-Ray Computed; D014463:Ultrasonography / Q000295:instrumentation