Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: As compared ___ , there are low lung volumes , with worsening bibasal atelectasis and likely small pleural effusions . The remainder of the lungs are clear . The cardiac silhouette is largely obscured . Moderate calcifications of the aortic arch . No pneumothorax .
    OUTPUT:
    
Low lung volumes with worsening bibasal atelectasis .