Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart size is normal . The mediastinal and hilar contours are unchanged and within normal limits . There is no pulmonary edema . Lungs are clear without focal consolidation . No pneumothorax or pleural effusion is demonstrated . There is hyperinflation the lungs with flattening of the diaphragms , suggestive of underlying COPD . Dextroscoliosis of the thoracic spine is again noted .
    OUTPUT:
    
No acute cardiopulmonary abnormality . Hyperinflation of lungs suggestive of underlying COPD .