Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lungs are hyperexpanded , with diffuse hyperlucency and widening of the retrosternal clear space . Changes of right bullectomy and pleurodesis . Moderate multiloculated right pleural effusion is unchanged . Additional bullae persist at the lung bases . Pulmonary aeration has improved , with decreased bibasilar atelectasis . Interval resolution of subcutaneous air in the right chest wall .
    OUTPUT:
    
Post - surgical changes in the right lower lobe . Moderate multiloculated right effusion .