Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The patient is status post median sternotomy and CABG . The heart remains mildly enlarged . The aorta is tortuous . Mediastinal and hilar contours are stable . The right internal jugular central venous catheter has been removed . The pulmonary vascularity is normal . There is mild hyperinflation of lungs . No focal consolidation , pleural effusion or pneumothorax is present . Two lines are seen which terminate in the region of the mid thoracic spine . Multilevel degenerative changes are noted in the thoracic spine .
    OUTPUT:
    
No acute cardiopulmonary abnormality .