Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are well expanded . There is moderate pulmonary edema . The cardiac silhouette is mild to moderately enlarged . There is a possible small pericardial effusion . No pleural effusion or pneumothorax is seen .
    OUTPUT:
    
1 . Moderate pulmonary edema . 2 . Possible small pericardial effusion .