Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is improvement in right basilar atelectasis . Otherwise , changes related to chronic scarring / atelectasis and emphysema are unchanged since ___ with no new focal opacities concerning for pneumonia . There are no large pleural effusions or pneumothorax . The cardiomediastinal and hilar contours are stable demonstrating a tortuous thoracic aorta . Pulmonary vascularity is not increased .
    OUTPUT:
    
No acute cardiopulmonary process .