Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Streaky bibasilar opacities are likely due to atelectasis . Superiorly the lungs are clear . The cardiomediastinal silhouette is within normal limits . Atherosclerotic calcifications seen at the aortic arch .
    OUTPUT:
    
Bibasilar opacities likely atelectasis although clinical correlation is suggested regarding the possibility of infection .