Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiomediastinal and hilar contours are stable and within normal limits . Trace bibasilar opacities likely reflect atelectasis . No large pleural effusion is demonstrated . There is no pneumothorax .
    OUTPUT:
    
Trace bibasilar opacities likely reflect atelectasis however infection should be considered in the appropriate setting .