Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Linear bibasilar opacities , right greater than left are most likely atelectasis . Superiorly , lungs are clear . There is no pulmonary edema . Cardiomediastinal silhouette is within normal limits . No acute osseous abnormalities .
    OUTPUT:
    
Bibasilar opacities likely atelectasis . Small superimposed effusions or infection are possible .