title: An unusual case of progressive dysphagia.
authors.affiliation: Division of Gastroenterology, Department of Internal Medicine, Korea University College of Medicine, Seoul, Korea.
authors.forename: Jung Wan
authors.initials: JW
authors.lastname: Choe
authors.affiliation: Division of Gastroenterology, Department of Internal Medicine, Korea University College of Medicine, Seoul, Korea.
authors.forename: Sung Woo
authors.initials: SW
authors.lastname: Jung
authors.affiliation: Division of Gastroenterology, Department of Internal Medicine, Korea University College of Medicine, Seoul, Korea.
authors.forename: Sang Woo
authors.initials: SW
authors.lastname: Lee
mesh_terms: D000368:Aged; D001706:Biopsy; D002296:Carcinosarcoma / Q000175:diagnosis / Q000473:pathology*; D003680:Deglutition Disorders / Q000209:etiology*; D003937:Diagnosis, Differential; D004938:Esophageal Neoplasms / Q000150:complications / Q000175:diagnosis* / Q000473:pathology; D004945:Esophagoscopy; D006801:Humans; D008297:Male