Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The patient is status post median sternotomy and CABG . Left - sided dual - chamber pacemaker device is noted with leads terminating in the right atrium and right ventricle , unchanged . The heart size is normal . The aorta is calcified . The mediastinal and hilar contours are normal . No evidence of pulmonary vascular engorgement . Lungs are clear . No pleural effusion or pneumothorax is seen . No acute osseous abnormality is visualized .
    OUTPUT:
    
No acute cardiopulmonary process .