Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The patient is status post median sternotomy and CABG . Heart size remains within normal limits . The aorta is tortuous . Mediastinal and hilar contours are otherwise unchanged . Pulmonary vasculature is not engorged . Lungs are clear . No pleural effusion or pneumothorax is seen . Osteophytic spurring is noted within the thoracic spine .
    OUTPUT:
    
No acute cardiopulmonary abnormality .