Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest . Linear opacity at the right lung base on the frontal and lateral view suggestive of atelectasis or alternatively , could represent fluid in the fissure . Additional linear opacities identified at the bases bilaterally . The cardiomediastinal silhouette is within normal limits . Hypertrophic changes are noted in the spine . Old healed anterior and lateral right rib fractures are identified .
    OUTPUT:
    
Probable right middle lobe atelectasis . Streaky bibasilar opacities potentially due to atelectasis noting infection is possible .