Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest . Mild left basilar opacity is seen which is somewhat linear suggestive of atelectasis . The lungs are otherwise clear . The cardiomediastinal silhouette is within normal limits . Osseous and soft tissue structures are unremarkable .
    OUTPUT:
    
Left basilar opacity suggestive of atelectasis noting that early infection can not be excluded .