Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The patient is status post median sternotomy , and multiple mediastinal surgical clips likely reflect prior bypass surgery . Coronary artery stents are also seen . The lungs are well aerated without focal consolidation , pleural effusion or pneumothorax . No pulmonary edema is seen , and the cardiac silhouette is normal in size . The mediastinal and hilar contours are normal . No acute osseous abnormality is seen .
    OUTPUT:
    
No acute cardiopulmonary process .