title: Retrotracheal abnormalities in esophageal carcinoma: prognostic implications.
mesh_terms: D000368:Aged; D004938:Esophageal Neoplasms / Q000150:complications / Q000000981:diagnostic imaging*; D006801:Humans; D008297:Male; D008875:Middle Aged; D011379:Prognosis; D011859:Radiography; D012189:Retrospective Studies; D014132:Trachea / Q000000981:diagnostic imaging*; D014138:Tracheoesophageal Fistula / Q000000981:diagnostic imaging / Q000209:etiology