Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Stable appearance to the cardiomediastinal silhouette . There is no pneumothorax . There is mild bibasilar atelectasis , unchanged . There is mild loss of vertebral body and disc height at multiple thoracic levels . Relative lucencies at the lung apices likely represent pulmonary emphysema .
    OUTPUT:
    
No acute cardiopulmonary abnormality .