title: [A report on 21 cases of mediastinal emphysema].
mesh_terms: D000293:Adolescent; D000328:Adult; D005260:Female; D006801:Humans; D008297:Male; D008478:Mediastinal Emphysema / Q000000981:diagnostic imaging / Q000628:therapy*; D008875:Middle Aged; D011859:Radiography