Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest . There are streaky bibasilar opacities . Blunting of the left lateral costophrenic angle is seen , potentially atelectasis . Posterior costophrenic angles are sharp without definite evidence of effusion . Superiorly , the lungs are clear . The cardiomediastinal silhouette is within normal limits . No acute osseous abnormality is identified .
    OUTPUT:
    
Streaky bibasilar opacities suggestive of atelectasis , noting that infection can not be entirely excluded .