title: Pseudocyst formation in gastric ectopic pancreas.
abstract: BACKGROUND
  It is rare for ectopic pancreatic tissue to cause symptoms or require treatment, however diseases of normal pancreas may also occur in ectopic pancreas tissue.
  
  
  METHODS
  This report describes the clinical, endoscopic, radiologic and histologic features of a pseudocyst occurring in gastric ectopic pancreas in a 19-year-old man. The difficulty and implications of making an accurate pre-operative diagnosis are highlighted.
  
  
  CONCLUSIONS
  Ectopic pancreatic tissue, although rare, should be considered in the differential diagnosis of a submucosal gastric mass.
authors.affiliation: Department of Surgery, Institute of Clinical Science, Queen's University, Belfast, Northern Ireland. keithmulholland@yahoo.com
authors.forename: Keith C
authors.initials: KC
authors.lastname: Mulholland
authors.forename: William D
authors.initials: WD
authors.lastname: Wallace
authors.forename: Emmanuel
authors.initials: E
authors.lastname: Epanomeritakis
authors.forename: Stephen R
authors.initials: SR
authors.lastname: Hall
mesh_terms: D000208:Acute Disease; D000328:Adult; D002828:Choristoma / Q000150:complications* / Q000175:diagnosis / Q000000981:diagnostic imaging / Q000601:surgery; D003937:Diagnosis, Differential; D004415:Dyspepsia / Q000209:etiology; D005773:Gastroscopy; D006396:Hematemesis / Q000209:etiology; D006801:Humans; D008297:Male; D010179:Pancreas; D010192:Pancreatic Pseudocyst / Q000175:diagnosis / Q000000981:diagnostic imaging / Q000209:etiology* / Q000601:surgery; D010195:Pancreatitis / Q000000981:diagnostic imaging / Q000209:etiology* / Q000601:surgery; D013272:Stomach Diseases / Q000150:complications* / Q000175:diagnosis / Q000000981:diagnostic imaging / Q000601:surgery; D036542:Tomography, Spiral Computed