title: Diagnosis of type IV-A congenital choledochal cyst in a 73-year-old man.
authors.affiliation: 2nd Department of Internal Medicine, Athens University Medical School, Athens, Greece.
authors.forename: G
authors.initials: G
authors.lastname: Kavvadas
authors.affiliation: Endoscopic Surgery Unit, Hippokratio Hospital, Athens, Greece.
authors.forename: A
authors.initials: A
authors.lastname: Chamzin
authors.affiliation: 2nd Department of Internal Medicine, Athens University Medical School, Athens, Greece.
authors.forename: S P
authors.initials: SP
authors.lastname: Dourakis
keywords: Choledochal cyst; endoscopic retrograde cholangiopancreatography; magnetic resonance cholangiopancreatography; polycystic kidney disease