Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There are small bilateral pleural effusions , larger on the left , with associated atelectasis . Superiorly , the lungs are clear . There is enlargement of the cardiac silhouette with a configuration raising concern for underlying pericardial effusion . No acute osseous abnormalities .
    OUTPUT:
    
Bilateral pleural effusions . Enlargement of the cardiac silhouette with a configuration raising concern for underlying pericardial effusion .