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 normal . The mediastinal and hilar contours are unremarkable . Lungs are clear . Mild biapical scarring is unchanged . There is no pulmonary vascular congestion . No pleural effusion or pneumothorax is present . No acute osseous abnormalities are identified .
    OUTPUT:
    
No acute cardiopulmonary process .