Fig. 1
From: Radiology in paediatric non-traumatic thoracic emergencies
a–d Pneumothorax. a Tension pneumothorax in a premature baby on the right side with a mediastinal shift to the left and compression of the left lung. b Anteroposterior and c lateral view of pneumomediastinum with air around the thymus—the “angel wing sign”—and bilateral basal pneumothorax in a term baby with respiratory problems. d A 7-year-old girl with pneumothorax on the right side and air leak into the mediastinum and subcutaneous tissue on the neck and axillae bilaterally