Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral images of the chest demonstrate low lung volumes likely secondary to poor inspiration . Again seen are bilateral pleural effusions . The right pleural effusion has improved since prior imaging . There is a large retrocardiac opacity , likely representing pleural effusion and atelectasis . There is an area of opacity at the right base which is likely atelectasis versus possible pneumonia . The lungs are otherwise clear . A left IJ is seen in place with the tip in the mid SVC . Previously seen pigtail catheter is not well visualized on this exam . There is no pneumothorax . Cardiomediastinal silhouette is obscured by pleural effusions .
    OUTPUT:
    
Improvement of right pleural effusion . Right basilar opacity likely represents atelectasis or possibly pneumonia . Large retrocardiac opacity likely represents pleural effusion and atelectasis .