Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart is mildly enlarged . There is mild unfolding and calcification along the thoracic aorta . The mediastinal and hilar contours appear unchanged . The chest is mildly hyperinflated . There is no pleural effusion or pneumothorax . The lungs appear clear .
    OUTPUT:
    
No evidence of injury .