title: [25-year-old man with persistent upper abdominal                     pain].
authors.affiliation: Klinik für Innere Medizin II, Krankenhaus Barmherzige Brüder Regensburg. Klaus.Muehlenberg@barmherzige-regensburg.de
authors.forename: K
authors.initials: K
authors.lastname: Muehlenberg
authors.forename: K H
authors.initials: KH
authors.lastname: Wiedmann
mesh_terms: D015746:Abdominal Pain / Q000175:diagnosis* / Q000209:etiology*; D000328:Adult; D003937:Diagnosis, Differential; D004443:Echinococcosis / Q000150:complications* / Q000000981:diagnostic imaging* / Q000473:pathology; D004444:Echinococcosis, Hepatic / Q000150:complications* / Q000000981:diagnostic imaging* / Q000473:pathology; D006801:Humans; D008297:Male; D014463:Ultrasonography