Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiomediastinal and hilar contours are normal , with a mildly tortuous thoracic aorta . The lungs are hyperexpanded . No consolidation , pulmonary edema , pleural effusion , or pneumothorax is detected .
    OUTPUT:
    
No acute cardiopulmonary pathology . Probably COPD .