Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiac silhouette size appears moderately enlarged , perhaps slightly increased from the previous chest radiograph . Fiducial markers are again seen in the left perihilar region . Previously noted right lower lobe fiducial marker is not clearly visualized . The mediastinal and hilar contours are relatively unchanged with post treatment changes noted in the left hilar region appearing similar . Pulmonary vascularity is not engorged . A moderate left pleural effusion has increased in size compared to the previous chest radiograph with associated left basilar opacity , potentially compressive atelectasis , but infection is not excluded . Small right pleural effusion is likely present and new from the prior exams . Minimal patchy right basilar opacity may reflect atelectasis but infection or aspiration can not be excluded . There is no pneumothorax . No acute osseous abnormality is visualized .
    OUTPUT:
    
1 . Increased size of moderate left pleural effusion and new trace right pleural effusion compared to the prior chest radiograph . 2 . Bibasilar patchy opacities may reflect atelectasis but infection or aspiration can not be excluded . 3 . Moderate enlargement of the cardiac silhouette , slightly increased from the prior chest radiograph , may reflect slightly increased component of the pericardial effusion as seen on the previous chest CT . 4 . Post treatment changes in the left hilar region .