Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Low bilateral lung volumes . There are increased bibasilar opacities which likely reflect atelectasis . No pneumothorax identified . The size of the cardiac silhouette is enlarged but unchanged . Re - demonstrated is a thoracoabdominal aortic stent .
    OUTPUT:
    
New opacities in both lower lobes likely reflect atelectasis , or consolidation in the correct clinical context .