Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Patient is status post median sternotomy and CABG . A left - sided AICD device is noted with leads in unchanged positions . Mild enlargement of the cardiac silhouette is unchanged . The mediastinal and hilar contours are similar . Atherosclerotic calcifications are noted at the aortic knob . The pulmonary vasculature is not engorged . Lungs are clear without focal consolidation . No pleural effusion or pneumothorax is visualized . No acute osseous abnormality is present .
    OUTPUT:
    
No acute cardiopulmonary abnormality .