title: Ectopic gastric mucosa in the upper esophagus: detection and radiographic findings.
abstract: OBJECTIVE
  To detect and characterize the appearance of islands of ectopic gastric mucosa in the upper esophagus at routine examination of the upper gastrointestinal (GI) tract.
  
  
  METHODS
  Well-distended upper esophagus was documented with spot radiographs obtained with routine double-contrast examination performed after administration of high-density barium in nine patients. Detected lesions were confirmed by means of endoscopy and biopsy.
  
  
  RESULTS
  Twelve lesions were detected. Radiographic findings were characterized by either a discrete, shallow depression surrounded by a subtle, rimlike elevation on double-contrast images or by a pair of small indentations on the same wall on full-column, single-contrast images at the level of the thoracic inlet. Endoscopic examination revealed well-circumscribed areas of reddish mucosa located 15-26 cm from the incisors.
  
  
  CONCLUSIONS
  Ectopic gastric mucosa in the upper esophagus is easily demonstrated at routine examination of the upper GI tract. Diagnosis can be based on location and characteristic radiographic appearance.
authors.affiliation: Department of Radiology, University of Iowa College of Medicine, Iowa City.
authors.forename: J
authors.initials: J
authors.lastname: Ueno
authors.forename: S W
authors.initials: SW
authors.lastname: Davis
authors.forename: A
authors.initials: A
authors.lastname: Tanakami
authors.forename: K
authors.initials: K
authors.lastname: Seo
authors.forename: S
authors.initials: S
authors.lastname: Yoshida
authors.forename: H
authors.initials: H
authors.lastname: Nishitani
authors.forename: H
authors.initials: H
authors.lastname: Irie
authors.forename: C C
authors.initials: CC
authors.lastname: Lu
mesh_terms: D000328:Adult; D000368:Aged; D001466:Barium Sulfate; D001706:Biopsy; D002828:Choristoma / Q000000981:diagnostic imaging* / Q000473:pathology; D004935:Esophageal Diseases / Q000000981:diagnostic imaging* / Q000473:pathology; D004947:Esophagus / Q000000981:diagnostic imaging / Q000473:pathology; D005260:Female; D005753:Gastric Mucosa; D006801:Humans; D008297:Male; D008875:Middle Aged; D011859:Radiography
chemical_list: D001466:Barium Sulfate