Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart size remains moderately enlarged . The mediastinal contours are stable with calcification of the aortic arch again noted . The hilar contours are unremarkable . No pulmonary edema or focal consolidation is demonstrated . No pleural effusion or pneumothorax is seen . Attenuation of the pulmonary vasculature towards the apices may reflect emphysema . There are no acute osseous abnormalities .
    OUTPUT:
    
No acute cardiopulmonary process .