Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiac silhouette is normal in size . There is tortuosity of the descending aorta . The hilar and mediastinal 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 .