Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is significant tortuosity of the descending aorta . The heart is mildly enlarged . The mediastinal and hilar contours are otherwise within normal limits . Lungs are well expanded and clear . There is no focal consolidation , pleural effusion or pneumothorax .
    OUTPUT:
    
No acute cardiopulmonary process .