Premature newborn on ventilator with respiratory distress Pediatric Imaging Chest August 24, 2019July 30, 2019 Supine CXR shows a large amount of air in the right pleural space with inversion of the right hemidiaphragm and mediastinal shift to the left. There is also evidence of pulmonary interstitial emphysema in the right lung. The diagnosis was a right tension pneumothorax. Related Published August 24, 2019July 30, 2019