Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is increased opacity projecting over the right lower lung which is more clear on the frontal exam than on the lateral . Elsewhere , the lungs are clear . The cardiomediastinal silhouette is within normal limits . No acute osseous abnormalities .
    OUTPUT:
    
Focal opacity in the right lower lung which is better appreciated on the frontal view than on the lateral which raises the possibility of atelectasis however infection would certainly be possible .