Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: As compared to prior chest examination , lung volumes are decreased , accentuating the bronchovascular structures and cardiac silhouette . There is bibasilar atelectasis . There is no definite focal consolidation concerning for pneumonia . There is no pleural effusion or pneumothorax .
    OUTPUT:
    
Low lung volumes , bibasilar atelectasis , no focal consolidation concerning for pneumonia .