Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest were obtained . The patient is status post median sternotomy and CABG . There is stable enlargement of the cardiac silhouette . Cardiac and mediastinal silhouettes are stable . Hilar contours are stable . Overall , there has been no significant interval change .
    OUTPUT:
    
No significant interval change .