Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiomediastinal and hilar contours are normal . The lungs are clear of consolidation although they are hyperexpanded , possibly representing COPD . There is no pleural effusion or pneumothorax . DISH and degenerative changes are noted throughout the thoracic spine .
    OUTPUT:
    
No acute cardiopulmonary process .