Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The patient is status post aortic valve replacement and left subclavian vein stent placement . There is a fracture through the inferior - most sternotomy wire , which is unchanged since ___ . Otherwise , the remaining sternotomy wires are intact and appropriately aligned . There is stable enlargement of the cardiomediastinal silhouette . Lungs are well - expanded and clear . The pulmonary vasculature is normal . No pleural effusion or pneumothorax is seen . There are no acute osseous abnormalities .
    OUTPUT:
    
No acute cardiopulmonary abnormality .