title: The visible wall of a main bronchus: a new radiological sign of pneumomediastinum.
abstract: A new sign of pneumomediastinum (mediastinal emphysema), namely a visible wall of a main bronchus as seen in the mediastinum on frontal radiographs of the chest, is described. This sign was present in eight out of 20 random cases of pneumomediastinum in adolescents and adults.
authors: Department of Radiology, Tygerberg Hospital, South Africa.
authors: J A
authors: JA
authors: Beyers
authors: C F
authors: CF
authors: Melonas
mesh_terms: D000293:Adolescent; D001995:Bronchography; D006801:Humans; D008297:Male; D008478:Mediastinal Emphysema / Q000000981:diagnostic imaging*