Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is bibasilar opacities , likely representing atelectasis on the right , however the opacities in the left lower lung are slightly more confluent and may represent atelectasis or pneumonia . No large pleural effusion or pneumothorax . Mild to moderate cardiomegaly . The cardiomediastinal and hilar contours are stable .
    OUTPUT:
    
Bibasilar opacities , likely representing atelectasis on the right , however the opacities in the left lower lung are slightly more confluent and may represent atelectasis or pneumonia . Mild to moderate cardiomegaly .