Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Significant improvement of postoperative changes are seen when compared to ___ study . The cardiac silhouette is normal . Hilar contours are unremarkable . Atelectasis and scarring of the right lower lung along with elevation of the right hemidiaphragm is seen but greatly improved . No focal consolidations or pleural effusions are seen .
    OUTPUT:
    
Improved postoperative changes of the right lung with residual right lower lobe atelectasis and scarring .