Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Left chest wall triple lead pacing device is again noted . There are bibasilar opacities which may be due to atelectasis although infection / aspiration are not excluded . Superiorly the lungs are clear . There is no overt pulmonary edema . Cardiomediastinal silhouette is stable .
    OUTPUT:
    
Probable bibasilar atelectasis noting that infection or aspiration are not excluded . No pulmonary edema .