Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There are bibasilar opacities , which become more conspicuous on the lateral view which may be in part due to lower lung volumes . Superiorly the lungs are clear . There is no effusion . The cardiomediastinal silhouette is within normal limits . No acute osseous abnormalities , old healed right posterior rib fractures noted . .
    OUTPUT:
    
Bibasilar opacities , accentuated on the lateral view which is notable for lower lung volumes . While this finding could be due to atelectasis , infection would be difficult to exclude in the proper clinical setting .