Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are normally expanded and clear . There are numerous healed right lateral rib fractures and probable scarring in the right lower lung . Heart size is normal . The mediastinal and hilar contours are normal . There is no pleural effusion or pneumothorax .
    OUTPUT:
    
No evidence of pneumonia . Several healed right lateral rib fractures .