title: Heterotopic pancreas in the common bile duct, with a review of the literature.
abstract: A 65-year-old man presented with upper abdominal pain and was suspected of having choledocholithiasis. Endoscopic extraction of the stone was performed; however, a round filling defect in the common bile duct (CBD) persisted. Subsequent cholangioscopy showed the presence of a papillary tumor in the CBD, and the lesion was removed via the Whipple procedure. Microscopically, the papillary lesion was composed of pancreatic tissue in the submucosal layer of the CBD and therefore diagnosed as reflective of heterotopic pancreas. This is only the seventh case of heterotopic pancreas in the CBD reported in the English literature.
authors.affiliation: Department of Gastroenterological Surgery, Kochi Health Sciences Center, Japan.
authors.forename: Tatsuaki
authors.initials: T
authors.lastname: Sumiyoshi
authors.forename: Yasuo
authors.initials: Y
authors.lastname: Shima
authors.forename: Takehiro
authors.initials: T
authors.lastname: Okabayashi
authors.forename: Takuhiro
authors.initials: T
authors.lastname: Kohsaki
authors.forename: Atsushi
authors.initials: A
authors.lastname: Kigi
authors.forename: Jun
authors.initials: J
authors.lastname: Iwata
authors.forename: Akihito
authors.initials: A
authors.lastname: Kozuki
authors.forename: Teppei
authors.initials: T
authors.lastname: Tokumaru
authors.forename: Isao
authors.initials: I
authors.lastname: Nishimori
authors.forename: Sojiro
authors.initials: S
authors.lastname: Morita
mesh_terms: D000368:Aged; D002291:Carcinoma, Papillary / Q000175:diagnosis* / Q000473:pathology; D002760:Cholangiopancreatography, Endoscopic Retrograde; D042883:Choledocholithiasis / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery; D002828:Choristoma / Q000175:diagnosis*; D003135:Common Bile Duct / Q000473:pathology*; D003937:Diagnosis, Differential; D004378:Duodenal Diseases / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery; D006801:Humans; D008297:Male; D010179:Pancreas; D016896:Treatment Outcome