Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiac size is top - normal . Patient has known emphysema . Increasing opacities in the left lower lobe are likely atelectasis . There is no pneumothorax or large effusions . New opacities in the right upper lobe could represent aspiration . There is no overt pulmonary edema . Biapical scarring is again noted
    OUTPUT:
    
New opacities in the right upper lobe could represent aspiration .