Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lungs are fully expanded and clear . No pleural abnormalities . Heart size is normal . Cardiomediastinal and hilar silhouettes are normal . A chronic anterior compression fracture in the lower thoracic spine is unchanged . Unchanged irregularity of the posterolateral left ninth and tenth ribs suggests prior fracture .
    OUTPUT:
    
No acute cardiopulmonary abnormality .