Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest . Linear bibasilar opacities are most suggestive of atelectasis . There is no effusion . Cardiomediastinal silhouette is within normal limits . Atherosclerotic calcifications again noted at the arch . No acute osseous abnormalities detected .
    OUTPUT:
    
Bibasilar linear opacities most suggestive of atelectasis . Otherwise , unremarkable chest x-ray .