Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size , mediastinal and hilar contours are normal . Lungs and pleural surfaces are clear . Mild peribronchial cuffing in the perihilar region is unchanged compared to multiple prior radiographs dating back to ___ . This could reflect chronic airways disease such as asthma or chronic bronchitis in the appropriate clinical setting .
    OUTPUT:
    
No radiographic evidence of pneumonia .