Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are well expanded and clear . There is no pleural effusion or pneumothorax . The cardiomediastinal silhouette is unremarkable . Median sternotomy wires and CABG clips are noted . Mild thoracic vertebral compression deformities are again noted , unchanged from ___ .
    OUTPUT:
    
No acute cardiopulmonary process .