Clinically poor maintenance of saturation. Radiograph reveals a hypertranslucent left hemithorax with absent lung markings. Lung collapsed and folded medially with air fluid level in the left costophrenic angle. Thin rim of air seen along the lateral margin of the aortic knuckle and pulmonary bay.
Significant newly developed subcutaneous edema involving left chest wall and extending superiorly into the left supraclavicular soft tissue planes.