title: Ulceration in ectopic mucosa of the esophagus.
mesh_terms: D001706:Biopsy; D003937:Diagnosis, Differential; D004381:Duodenal Ulcer / Q000175:diagnosis; D004848:Epithelium; D004935:Esophageal Diseases / Q000175:diagnosis / Q000000981:diagnostic imaging / Q000209:etiology / Q000473:pathology / Q000628:therapy; D004938:Esophageal Neoplasms / Q000175:diagnosis; D004945:Esophagoscopy; D004947:Esophagus / Q000002:abnormalities*; D005764:Gastroesophageal Reflux / Q000175:diagnosis; D006548:Hernia, Diaphragmatic / Q000175:diagnosis; D006801:Humans; D009092:Mucous Membrane; D011859:Radiography; D013276:Stomach Ulcer / Q000175:diagnosis; D014456:Ulcer / Q000175:diagnosis / Q000000981:diagnostic imaging / Q000473:pathology