Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The patient is status post median sternotomy and CABG with multiple bypass grafts stents again demonstrated . The cardiac , mediastinal and hilar contours are normal . Pulmonary vasculature is normal . The aorta is mildly diffusely calcified . There is minimal atelectasis in the left lung base , but no focal consolidation , pleural effusion or pneumothorax is visualized . Pulmonary vasculature is not engorged . No acute osseous abnormality is identified .
    OUTPUT:
    
No acute cardiopulmonary abnormality .