title: Mucin-producing bile duct tumor of the caudate lobe protruding into the common hepatic duct.
abstract: Mucin-producing tumor in the bile duct is referred to clinically as mucin-producing bile duct tumor (MPBT). Intraductal papillary neoplasm of the biliary tract that resembles an intraductal papillary mucinous neoplasm (IPMN) of the pancreas is a rare category of MPBT and is not well characterized. We, herein, report a case of MPBT of the caudate lobe of the liver that showed papillary growth and communicated with the bile duct of the caudate lobe and protruded into the common hepatic duct. Histologically, MPBT cells showed papillary overgrowth with abundant mucinous secretions, resembling an IPMN of the pancreas. The MPBT cells showed the same immunostaining pattern as that of cells from IPMN of the pancreas.
authors.affiliation: Department of Surgical Oncology and Regulation of Organ Function, Miyazaki University School of Medicine, 5200 Kihara, Kiyotake, Miyazaki, 889-1692, Japan.
authors.forename: Shuichiro
authors.initials: S
authors.lastname: Uchiyama
authors.forename: Kazuo
authors.initials: K
authors.lastname: Chijiiwa
authors.forename: Masahide
authors.initials: M
authors.lastname: Hiyoshi
authors.forename: Motoaki
authors.initials: M
authors.lastname: Nagano
authors.forename: Jiro
authors.initials: J
authors.lastname: Ohuchida
authors.forename: Koki
authors.initials: K
authors.lastname: Nagaike
authors.forename: Masahiro
authors.initials: M
authors.lastname: Kai
authors.forename: Kazuhiro
authors.initials: K
authors.lastname: Kondo
mesh_terms: D001650:Bile Duct Neoplasms / Q000378:metabolism* / Q000473:pathology*; D049448:Cholangiopancreatography, Magnetic Resonance; D005260:Female; D006500:Hepatic Duct, Common / Q000473:pathology*; D006801:Humans; D007150:Immunohistochemistry; D008113:Liver Neoplasms / Q000473:pathology*; D008279:Magnetic Resonance Imaging; D008875:Middle Aged; D009077:Mucins / Q000378:metabolism*
chemical_list: D009077:Mucins