Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Compared with radiograph from ___ , there is increased moderate interstitial pulmonary edema and moderate cardiomegaly . Lung volumes are low , unchanged , with increased bibasilar atelectasis and retrocardiac opacification . There is no pneumothorax or pleural effusion .
    OUTPUT:
    
1 . Moderate pulmonary edema and cardiomegaly , suggestive of congestive heart failure . 2 . Increased retrocardiac opacification . In view of extensive pulmonary changes , it is impossible to exclude super infection .