title: [Rarely its is really spontaneous....].
authors: Servizio Radiologia I, Spedali Civili, Brescia.
authors: R
authors: R
authors: Bergonzini
authors: M
authors: M
authors: Zompatori
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D001980:Bronchi / Q000293:injuries; D002648:Child; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007231:Infant, Newborn; D008297:Male; D008478:Mediastinal Emphysema / Q000175:diagnosis / Q000000981:diagnostic imaging / Q000209:etiology*; D013902:Radiography, Thoracic; D013997:Time Factors; D014057:Tomography, X-Ray Computed