Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable upright view of the chest demonstrates extensive subcutaneous gas , which limits assessment for pneumothorax ; however , no appreciable pneumothorax is seen . Pneumomediastinum persists . Moderate right pleural effusion is largely unchanged . Diffuse bilateral airspace opacities have minimally progressed since prior . There is no left pleural effusion . ET tube is positioned 3 .4 cm above the carina . Nasogastric tube is seen traversing the esophagus and terminating in the stomach . The right PIC catheter tip projects over mid SVC . Right - sided chest tube is in place .
    OUTPUT:
    
1 . Extensive subcutaneous gas limits evaluation for pneumothorax . Within this limitation , no appreciable pneumothorax is detected . Persistent pneumomediastinum and diffuse bilateral airspace opacities . 2 . Moderate right pleural effusion , unchanged .