title: Spontaneous mediastinal emphysema.
mesh_terms: D000328:Adult; D000367:Age Factors; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D007223:Infant; D008297:Male; D008478:Mediastinal Emphysema / Q000175:diagnosis* / Q000503:physiopathology