Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The patient is status post median sternotomy and CABG . The heart size is mildly enlarged . The aorta is mildly tortuous . Mediastinal and hilar contours are otherwise unremarkable . Pulmonary vasculature is normal . Lungs are clear . No pleural effusion or pneumothorax is present . No acute osseous abnormality is detected . Remote fracture of the left seventh rib is noted .
    OUTPUT:
    
No acute cardiopulmonary abnormality .