Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are well - expanded and clear , noting chronic elevation of the right hemidiaphragm . No pleural abnormality . Heart size is normal . Cardiomediastinal hilar silhouettes are unremarkable . Median sternotomy wires are midline and intact .
    OUTPUT:
    
No evidence of acute cardiopulmonary abnormality .