School ager in a motor vehicle collision Pediatric Imaging Chest September 21, 2023August 24, 2023 CXR AP (above) shows extensive opacification of the right middle and lower lobes with a small cystic structure in the middle. Axial CT with contrast of the chest (below) shows a multiseptated lesion containing air and blood in the right lower lobe. The diagnosis was pulmonary laceration / traumatic hematopneumatocele. Related Published September 21, 2023August 24, 2023