title: The query corner. Narrowing of the common hepatic duct found on ERCP.
authors.affiliation: Georgetown University Medical Center, Washington, DC, USA.
authors.forename: S
authors.initials: S
authors.lastname: Mahan
authors.forename: R K
authors.initials: RK
authors.lastname: Zeman
mesh_terms: D001649:Bile Duct Diseases / Q000000981:diagnostic imaging; D002760:Cholangiopancreatography, Endoscopic Retrograde; D003251:Constriction, Pathologic / Q000000981:diagnostic imaging; D003937:Diagnosis, Differential; D006500:Hepatic Duct, Common / Q000000981:diagnostic imaging*; D006801:Humans