Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are well expanded and clear . Postoperative changes in the right lung are unchanged . Following right upper lobectomy there is unchanged mild rightward shift of the mediastinal structures . A surgical clip in the region of the right mediastinum is again noted and likely secondary to prior mediastinal lymph node dissection . The heart is normal in size and the mediastinal contour is unremarkable . There are no focal consolidations to suggest pneumonia . There is no pneumothorax or pulmonary effusion .
    OUTPUT:
    
Stable post-surgical changes without evidence of pneumonia .