Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiac , mediastinal and hilar contours appear stable . Band - like areas of scarring appear unchanged in the lower lungs . There is no pleural effusion or pneumothorax . The chest is hyperinflated . Prior healed rib fractures appear unchanged on the right without displacement .
    OUTPUT:
    
No evidence of acute cardiopulmonary disease .