title: Inflammatory polyp in the common bile duct with pancreaticobiliary maljunction.
abstract: A 63-year-old woman was admitted because of epigastric pain and obstructive jaundice. Endoscopic retrograde cholangiopancreatography and intraductal ultrasonography revealed a 25-mm papillary nodule in the middle to inferior portion of the common bile duct (CBD). Pancreaticobiliary maljunction (PBM) was also identified. Contrast-enhanced computed tomography also showed an enhanced nodule in the CBD, and we suspected intraductal papillary neoplasm of the bile duct. We performed pylorus-preserving pancreatoduodenectomy. Postoperative pathological examination revealed an inflammatory polyp in the middle CBD. Inflammatory polyp in the bile duct is rare and there are no previous reports accompanied by PBM. PBM is a major risk factor for biliary tract cancer. Preoperative diagnosis of a benign disorder was difficult in this case.
authors.affiliation: Department of General Surgery, Kurashiki Central Hospital, Kurashiki, Japan.
authors.forename: Yuichiro
authors.initials: Y
authors.lastname: Uchida
authors.affiliation: Department of General Surgery, Kurashiki Central Hospital, Kurashiki, Japan.
authors.forename: Yusuke
authors.initials: Y
authors.lastname: Ome
authors.affiliation: Department of General Surgery, Kurashiki Central Hospital, Kurashiki, Japan.
authors.forename: Keita
authors.initials: K
authors.lastname: Shimata
authors.affiliation: Department of General Surgery, Kurashiki Central Hospital, Kurashiki, Japan.
authors.forename: Yoshio
authors.initials: Y
authors.lastname: Nagahisa
authors.affiliation: Department of General Surgery, Kurashiki Central Hospital, Kurashiki, Japan.
authors.forename: Michio
authors.initials: M
authors.lastname: Okabe
authors.affiliation: Department of General Surgery, Kurashiki Central Hospital, Kurashiki, Japan.
authors.forename: Kazuyuki
authors.initials: K
authors.lastname: Kawamoto
authors.affiliation: Department of General Surgery, Kurashiki Central Hospital, Kurashiki, Japan.
authors.forename: Tae Bum
authors.initials: TB
authors.lastname: Park
authors.affiliation: Department of General Surgery, Kurashiki Central Hospital, Kurashiki, Japan.
authors.forename: Tadashi
authors.initials: T
authors.lastname: Itoh
authors.affiliation: Department of General Surgery, Kurashiki Central Hospital, Kurashiki, Japan.
authors.forename: Keizo
authors.initials: K
authors.lastname: Ogasahara
keywords: Bile duct polyp; Inflammatory polyp; Pancreaticobiliary maljunction