title: Gastric fundal heterotopic pancreas mimicking a gastrointestinal stromal tumour (GIST): a case report and a brief review.
abstract: BACKGROUND
  Heterotopic pancreas is a rare congenital condition characterised by pancreatic tissue lacking vascular or anatomic communication with the normal pancreas. Most cases of ectopic pancreas are asymptomatic. The preoperative diagnosis of this condition is difficult.
  
  
  METHODS
  A 50-year-old woman presented with dyspeptic symptoms of 4 years duration. Contrast enhanced CT (computed tomography) scan of abdomen suggested a gastrointestinal stromal tumour in the fundus of the stomach. The patient underwent laparoscopy assisted resection and subsequent histology revealed ectopic pancreatic tissue.
  
  
  CONCLUSIONS
  Although heterotopic pancreas is a rare lesion diagnosed on histology, it should be considered in the differential diagnosis of gastric mass lesions and in patients presenting with vague upper gastrointestinal symptoms.
authors.affiliation: University Surgical Unit, The National Hospital of Sri Lanka, 28/1, Ishwari Road, Colombo, Sri Lanka.
authors.forename: Duminda
authors.initials: D
authors.lastname: Subasinghe
authors.affiliation: University Surgical Unit, The National Hospital of Sri Lanka, 28/1, Ishwari Road, Colombo, Sri Lanka.
authors.forename: Sivasuriya
authors.initials: S
authors.lastname: Sivaganesh
authors.affiliation: Department of Pathology, Faculty of Medicine, University of Colombo, Colombo, Sri Lanka.
authors.forename: Niranthi
authors.initials: N
authors.lastname: Perera
authors.affiliation: University Surgical Unit, The National Hospital of Sri Lanka, 28/1, Ishwari Road, Colombo, Sri Lanka. samarasekera58@yahoo.co.uk.
authors.forename: Dharmabandhu N
authors.initials: DN
authors.lastname: Samarasekera
mesh_terms: D002828:Choristoma / Q000000981:diagnostic imaging* / Q000473:pathology / Q000601:surgery; D003937:Diagnosis, Differential; D016099:Endoscopy, Gastrointestinal; D005260:Female; D005748:Gastric Fundus / Q000000981:diagnostic imaging* / Q000473:pathology; D046152:Gastrointestinal Stromal Tumors / Q000000981:diagnostic imaging* / Q000473:pathology / Q000601:surgery; D006801:Humans; D010535:Laparoscopy; D008875:Middle Aged; D010179:Pancreas / Q000000981:diagnostic imaging*; D014057:Tomography, X-Ray Computed
keywords: Endoscopy; Heterotopic pancreas; Stomach; Surgery