Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable semi-upright frontal view of the chest . The endotracheal tube ends 3 cm above the carina . The nasogastric tube terminates off of the radiograph . A right subclavian central venous line ends at the cavoatrial junction . Diffuse bilateral parenchymal opacities persist and are relatively unchanged since ___ and slightly improved since ___ . There is bilateral lower lobe atelectasis and unchanged small - to - moderate bilateral pleural effusions . Stable cardiomegaly and widened mediastinum .
    OUTPUT:
    
Relatively unchanged appearance of diffuse bilateral parenchymal opacities which could represent pneumonia , edema , hemorrahge or a combination of the above . Small - to - moderate bilateral pleural effusions . Lines and tubes in appropriate position .