Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The patient is status post median sternotomy and CABG . Fracture of the superior most sternotomy wire is re - demonstrated . Heart size is mildly enlarged but unchanged . The aortic knob is calcified . The mediastinal and hilar contours are normal . Pulmonary vasculature is normal . There is no focal consolidation or pneumothorax . No definite pleural effusion is seen . There are no acute osseous abnormalities .
    OUTPUT:
    
No acute cardiopulmonary process .