title: Ectopic gastric mucosa in the upper esophagus as a cause of dysphagia.
mesh_terms: D000328:Adult; D002828:Choristoma / Q000150:complications* / Q000473:pathology; D003680:Deglutition Disorders / Q000209:etiology* / Q000473:pathology; D004938:Esophageal Neoplasms / Q000150:complications* / Q000473:pathology; D004947:Esophagus / Q000473:pathology; D005753:Gastric Mucosa / Q000473:pathology; D006801:Humans; D008297:Male