Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is hazy opacity at the right lower lung . Slightly lower lung volumes seen on the current exam which also likely accentuate the cardiac silhouette . Coronary artery stents are noted . Lungs are otherwise clear . There is no effusion or edema . No acute osseous abnormalities .
    OUTPUT:
    
Hazy right basilar opacity could be atelectasis given lower lung volumes noting that infection is not entirely excluded .