title: [4 cases of spontaneous mediastinal and subcutaneous emphysema associated with bronchial asthma in children].
mesh_terms: D001249:Asthma / Q000150:complications*; D002648:Child; D002675:Child, Preschool; D004646:Emphysema / Q000000981:diagnostic imaging*; D006801:Humans; D008297:Male; D008478:Mediastinal Emphysema / Q000000981:diagnostic imaging* / Q000209:etiology; D011859:Radiography; D013352:Subcutaneous Emphysema / Q000000981:diagnostic imaging* / Q000209:etiology