Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Patient is status post median sternotomy and CABG . Mild enlargement of cardiac silhouette is unchanged . The mediastinal and hilar contours are unremarkable . The pulmonary vasculature is not engorged . Lungs are clear without focal consolidation . No pleural effusion or pneumothorax is present . No acute osseous abnormalities detected .
    OUTPUT:
    
No acute cardiopulmonary abnormality .