Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are slightly increased compared with the immediate prior study with unchanged enlargement of the cardiac silhouette and moderate left and small right pleural effusions . Subsegmental atelectasis in the right mid lung and left upper lung are unchanged , allowing for differences in projection . There is no focal consolidation or pneumothorax .
    OUTPUT:
    
1 . Persistent enlargement of cardiac silhouette suggesting pericardial effusion with unchanged moderate left and small right pleural effusions . 2 . Short interval stability of trace pulmonary edema .