Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiac silhouette remains moderate to severely enlarged , with a globular configuration , compatible with known pericardial effusion . Mediastinal contour remains unchanged . There are low lung volumes with crowding of the bronchovascular structures . No overt pulmonary edema is present . Small left pleural effusion is similar compared to the prior exam . A trace right pleural effusion is also re - demonstrated . No pneumothorax is present . Patchy opacities in the lung bases likely reflect atelectasis .
    OUTPUT:
    
Similar enlargement of the cardiac silhouette compatible with known pericardial effusion . Bibasilar atelectasis with small bilateral pleural effusions , left greater than right .