Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart is normal in size . The hilar and mediastinal contours are normal . The lungs are well expanded and clear . There are no pleural effusions or pneumothorax . Postsurgical changes are seen along the third rib on the right . Otherwise , remaining osseous structures are grossly unremarkable .
    OUTPUT:
    
Normal postoperative chest radiograph .