Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lung volumes are low . Moderate - severe enlargement of the cardiac silhouette , is new since the earlier study of ___ , with a globular cardiac configuration raising concern for pericardial effusion . Mild hazy opacities in both lung fields , may be secondary to pulmonary edema . No pleural effusion or pneumothorax is seen .
    OUTPUT:
    
Globular cardiomegaly , new since the prior study , concerning for pericardial effusion . Probable mild pulmonary edema .