Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is a large amount of fluid in the right hemithorax , with multiple air - fluid levels ; this is not significantly changed in appearance compared to ___ and represents normal post - pneumonectomy changes . The left lung is essentially clear , without focal consolidations , pleural effusion or pneumothorax . The left heart border appears normal . Mild calcification of the aortic arch . There is been interval improvement in the extent of the previously noted subcutaneous emphysema along the right chest wall . Other than the right ___ and 7th rib fractures which are likely post - surgical , there are no acute osseous abnormalities .
    OUTPUT:
    
Stable post-pneumonectomy changes . Interval improvement in the extent of right chest wall subcutaneous emphysema .