Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: New bibasilar atelectasis . Lungs are otherwise clear . No obvious pleural effusion . Heart size is top - normal . No pulmonary vascular congestion or edema . Cardiomediastinal and hilar silhouettes are unremarkable .
    OUTPUT:
    
New bibasilar atelectasis . Otherwise no significant change .