Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Patient is status post median sternotomy and CABG with coronary artery stenting . The heart size is normal . The mediastinal and hilar contours are unchanged . No focal consolidation , pleural effusion or pneumothorax is present . Linear opacities within the right upper lobe appear unchanged , and likely reflect chronic scarring . There are no acute osseous abnormalities .
    OUTPUT:
    
No acute cardiopulmonary abnormality .