The air esophagram: a sign of scleroderma involving the esophagus.
D000388:Air; D001464:Barium; D004935:Esophageal Diseases / Q000000981:diagnostic imaging*; D006801:Humans; D011859:Radiography; D012595:Scleroderma, Systemic / Q000000981:diagnostic imaging*
D001464:Barium