title: Ampullary carcinoma associated with an annular pancreas.
abstract: BACKGROUND
  Annular pancreas is an uncommon congenital abnormality. Co-existence of this condition with a pancreaticobiliary malignancy is an exceptionally rare occurrence.
  
  
  METHODS
  We present a case report of a 78-year-old woman with jaundice due to an ampullary carcinoma associated with an annular pancreas treated by pancreaticoduodenectomy.
  
  
  CONCLUSIONS
  A collection of previously reported cases is reviewed together with the relevant literature. Obstructive jaundice is an uncommon feature of annular pancreas; hence the possibility of co-existent pancreaticobiliary malignancy should be excluded.
authors.affiliation: Department of Hepatobiliary Surgery, St James's University Hospital, Leeds, United Kingdom.
authors.forename: Fung J
authors.initials: FJ
authors.lastname: Foo
authors.forename: Upkar
authors.initials: U
authors.lastname: Gill
authors.forename: Caroline S
authors.initials: CS
authors.lastname: Verbeke
authors.forename: James A
authors.initials: JA
authors.lastname: Guthrie
authors.forename: Krishna V
authors.initials: KV
authors.lastname: Menon
mesh_terms: D000236:Adenoma / Q000150:complications* / Q000175:diagnosis / Q000601:surgery; D000368:Aged; D014670:Ampulla of Vater / Q000601:surgery; D003138:Common Bile Duct Neoplasms / Q000150:complications* / Q000175:diagnosis / Q000601:surgery; D005260:Female; D006801:Humans; D010179:Pancreas / Q000002:abnormalities* / Q000601:surgery; D016577:Pancreaticoduodenectomy