Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiomediastinal and hilar contours are stable , with heavy calcification of the aortic knob and unfolding of the descending aorta . There is no pleural effusion or pneumothorax . The lungs are well expanded and clear without focal consolidation . The upper abdomen is unremarkable with no free air . A left axillary dual - lead pacemaker is noted with tips terminating in stable positions within the right atrium and right ventricle .
    OUTPUT:
    
No acute cardiopulmonary process .