Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Patient is status post median sternotomy and CABG . The heart size is mildly enlarged but unchanged . The mediastinal and hilar contours are similar . The pulmonary vasculature is not engorged . Minimal atelectasis is noted in the lung bases . No focal consolidation , pleural effusion or pneumothorax is demonstrated . Remote left - sided rib fractures are again noted .
    OUTPUT:
    
No acute cardiopulmonary abnormality .