Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is moderate enlargement of the cardiac silhouette . Retrocardiac opacification likely represents a combination of a left pleural effusion and atelectasis . However , there is a more masslike opacity anterior to the spine on the lateral view . There is moderate pulmonary edema . No pneumothorax .
    OUTPUT:
    
1 . Cardiomegaly , left pleural effusion and pulmonary edema 2 . Opacity anterior to the spine on the lateral view could represent a hiatal hernia ; however , a mass is also possible . This could be further evaluated with chest CT