Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is extensive new post-radiation sclerosis involving the right mid lung and adjacent mediastinum . The lungs are otherwise clear . The hilar and cardiomediastinal contours are normal . There is no pneumothorax or pleural effusion . Pulmonary vascularity is normal .
    OUTPUT:
    
Extensive pulmonary sclerosis secondary to radiation therapy with no evidence of pneumonia .