title: Hilar biliary obstruction: malignant masquerades.
abstract: Biliary obstruction at the hepatic hilus is most often due to malignancy. Clinically, it can be very difficult to differentiate malignant from benign obstruction when a mass lesion is not evident on cross-sectional imaging. In this article, we describe three cases of benign biliary obstruction due to so-called malignant masquerades to familiarize the reader with the clinical, radiographic, and pathological features of these uncommon but important entities.
authors.affiliation: Department of Radiology, Indiana University, Indianapolis, Indiana.
authors.forename: Anne M
authors.initials: AM
authors.lastname: Covey
authors.forename: George I
authors.initials: GI
authors.lastname: Getrajdman