Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Patient is status post median sternotomy and CABG . Left - sided dual - chamber pacemaker device is noted with leads terminating in unchanged positions . Heart size remains mildly enlarged . Mediastinal and hilar contours are normal . Pulmonary vasculature is normal . Minimal streaky opacities at the lung bases likely reflect areas of atelectasis and or scarring . No pleural effusion or pneumothorax is present . There are no acute osseous abnormalities .
    OUTPUT:
    
No acute cardiopulmonary abnormality .