Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are low , making comparison to prior exam slightly limited due to different lung volumes . Moderate bilateral pleural effusions persist with adjacent atelectasis . Bibasilar parenchymal opacities persist . No pneumothorax is seen . Left - sided pigtail catheter is partially evaluated . Right - sided pigtail catheter is not well seen on this study .
    OUTPUT:
    
Persistent bilateral pleural effusions and bibasilar opacities . Poor visualization of the right pleural catheter .