Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart is normal in size . The aorta is mildly tortuous and calcified . Otherwise , mediastinal and hilar contours are unremarkable . There is no definite pneumothorax or pleural effusion . Lungs appear clear . The chest is hyperinflated .
    OUTPUT:
    
No evidence of acute disease . Hyperinflation .