Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is normal . The aorta is tortuous in the ascending aortic contour appears mildly dilated . Hilar contours are normal . The pulmonary vasculature is not engorged . The lungs are clear . No pleural effusion or pneumothorax is demonstrated . No acute osseous abnormalities detected
    OUTPUT:
    
No acute cardiopulmonary abnormality . Normal heart size . Mildly tortuous and dilated ascending aorta , compatible with a history of aortic stenosis .