Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are well inflated and clear . The cardiac silhouette is mildly enlarged , as before . The thoracic aorta is tortuous and calcified . There is no pleural effusion or pneumothorax . Median sternotomy wires and surgical clips are again noted . There is scoliosis of the thoracolumbar spine .
    OUTPUT:
    
No acute cardiopulmonary process .