Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The patient is status post median sternotomy with three intact median sternotomy wires demonstrated . Mild enlargement of the cardiac silhouette is unchanged . The mediastinal and hilar contours are stable . Pulmonary vascularity is normal . Linear opacities within the lingula are compatible with areas of scarring . No focal consolidation , pleural effusion or pneumothorax is present . There is no pulmonary vascular congestion . Clips are seen within the upper abdomen just to the right of midline .
    OUTPUT:
    
No acute cardiopulmonary abnormality .