Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: As compared to prior radiograph from ___ , there has been interval improvement of bibasilar atelectasis . There is a small right pleural effusion . There is no pneumothorax . The cardiomediastinal contours are stable in appearance .
    OUTPUT:
    
Improving bibasilar atelectasis with persistent small right pleural effusion .