Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There are streaky bibasilar opacities , left greater than right . Superiorly , the lungs are clear . The cardiomediastinal silhouette is within normal limits . No acute osseous abnormalities , hypertrophic changes are noted in the spine .
    OUTPUT:
    
Streaky bibasilar opacities , most likely atelectasis as seen on recent exam , infection is not entirely excluded .