Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Postsurgical changes of a right upper lobectomy and right upper rib resection are unchanged . Radiation changes are stable . There is associated volume loss with elevation and tenting of the right hemidiaphragm . There is atelectasis of the right middle lobe , unchanged from prior exams . The previously seen right lower lobe nodular opacities have improved since the prior studies in ___ . There is no new opacification . There is no pleural effusion or pneumothorax . The cardiomediastinal silhouette is shifted rightward due to volume loss , but otherwise normal in shape and contour . The osseous structures are unremarkable .
    OUTPUT:
    
1 . Stable post-surgical and post-radiation changes of the right lung . 2 . Interval improvement of previously seen right lower lobe opacification . 3 . No new opacity , effusion , or pneumothorax .