Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest . There are hazy bibasilar opacities . There is no effusion or overt pulmonary edema . The cardiomediastinal silhouette is within normal limits . Atherosclerotic calcifications are noted at the arch . Hypertrophic changes noted in the spine .
    OUTPUT:
    
Bibasilar opacities , potentially atelectasis , although infection is not entirely excluded .