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