title: Duodenal duplication complicating laparoscopic cholecystectomy: a case report.
abstract: Duplication of the gastrointestinal tract is an uncommon congenital abnormality that can occur anywhere from the tongue to the anus. The duodenum is the least common location for such an abnormality, which usually manifests as a spherical cyst-like structure that can present as mechanical  bowel obstruction, biliary obstruction or an abdominal mass, among other presentations. Such abnormalities are typically detected during childhood but here we report a case of duodenal duplication discovered as a complication of laparoscopic cholecystectomy in an adult.
authors.affiliation: Newcastle upon Tyne Hospitals NHS Foundation Trust, UK. m.thomas2@nhs.net
authors.forename: M P
authors.initials: MP
authors.lastname: Thomas
authors.forename: S P K
authors.initials: SP
authors.lastname: John
authors.forename: A
authors.initials: A
authors.lastname: Darne
authors.forename: J J
authors.initials: JJ
authors.lastname: French
mesh_terms: D017081:Cholecystectomy, Laparoscopic; D002764:Cholecystitis / Q000601:surgery*; D002769:Cholelithiasis / Q000601:surgery*; D004386:Duodenum / Q000002:abnormalities*; D005260:Female; D006801:Humans; D033162:Incidental Findings; D008875:Middle Aged