Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiac silhouette is enlarged , there is a new moderate right and small left pleural effusion as well as mild pulmonary edema , worsened since ___ . No pneumothorax . There is a left retrocardiac opacity which likely represents atelectasis .
    OUTPUT:
    
Moderate cardiomegaly and mild pulmonary edema .