Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are well - expanded and clear . There is no hilar or pleural abnormality . The cardiomediastinal silhouette is stable . Median sternotomy wires , aortic core valve , and prosthetic mitral valve are unchanged . No acute osseous abnormalities are detected . Minimal anterior height loss of multiple thoracic vertebra is unchanged .
    OUTPUT:
    
No acute intrathoracic process .