Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There are persistent bibasilar opacities compatible with layering effusions with adjacent atelectasis and perhaps mild pulmonary edema . The cardiomediastinal silhouette is stable . Atherosclerotic calcifications seen at the aortic arch . No acute osseous abnormalities .
    OUTPUT:
    
Persistent moderate bilateral pleural effusions with adjacent atelectasis . Superimposed infection would be difficult to exclude .