Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiomediastinal contours are stable in appearance . Improving bibasilar atelectasis is present . Partially loculated right pleural effusion , small - to - moderate in size , is unchanged . Subcutaneous emphysema is present in the right chest wall extending into the right supraclavicular and cervical regions .
    OUTPUT:
    
Improving bibasilar atelectasis . Persistent right pleural effusion .