Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart size is normal . There is evidence of chronic scarring in the right upper lung , otherwise the lungs are clear . There is no pneumothorax or pleural effusion . The hilar and mediastinal contours are unremarkable . The visualized osseous structures are unremarkable .
    OUTPUT:
    
No acute abnormalities identified that may explain patient 's cough and fever .