Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are well expanded and clear . The patient is status post right middle lobectomy and chain sutures are seen in the right lower lung . There is slight shift of the heart to the right following the lobectomy . The cardiomediastinal silhouette and hilar contours are normal . There is no pleural effusion or pneumothorax .
    OUTPUT:
    
Stable postsurgical changes without evidence of pneumonia .