Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Patient is status post median sternotomy and CABG . Cardiac silhouette size is top normal with the left ventricular predominance . The aorta is calcified and mildly tortuous . Mediastinal and hilar contours are otherwise unremarkable . Pulmonary vasculature is not engorged . Lungs are clear without focal consolidation . No pleural effusion or pneumothorax is present . Hypertrophic changes are seen throughout the thoracic spine .
    OUTPUT:
    
No acute cardiopulmonary abnormality .