Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is subtle opacity in the right lower lobe which maybe due to atelectasis and low lung volumes versus pneumonia in the correct clinical setting . Left lower lobe opacity is likely a prominent epicardial fat pad . Retrocardiac area remains clear . There is no pleural effusion or pneumothorax or pulmonary edema . The heart size is mildly enlarged .
    OUTPUT:
    
Subtle right lower lobe opacities which may reflect pneumonia in the correct clinical setting , alternatively atelectasis .