Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lungs are hyperinflated . The heart is not enlarged . The aorta is markedly tortuous and enlarged . No pneumothorax , pleural effusion , or consolidation . Pacemaker device is present , with leads ending in the right atrium and right ventricle .
    OUTPUT:
    
No pneumonia . Enlarged , probably chronically dissected thoracic aorta .