Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are low . Moderate enlargement of the cardiac silhouette is re - demonstrated . The aorta remains tortuous . The pulmonary vasculature is normal . Minimal patchy opacities in the lung bases likely reflect atelectasis . No focal consolidation , pleural effusion or pneumothorax is seen . There are no acute osseous abnormalities . Levoscoliosis of the thoracic spine is noted .
    OUTPUT:
    
Low lung volumes with mild bibasilar atelectasis .