Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart is mildly enlarged with a left ventricular configuration . There is mild unfolding of the thoracic aorta . The arch of the aorta is partly calcified . The lungs appear clear . There are no pleural effusions or pneumothorax . Small osteophytes are noted along the thoracic spine .
    OUTPUT:
    
Mild cardiomegaly . No evidence of acute disease .