Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is normal . Stent is noted in the left anterior descending coronary artery . The aorta remains unfolded with dilatation of the ascending aorta , better assessed on the previous CT . Mediastinal and hilar contours are otherwise unremarkable . Pulmonary vasculature is normal . Lungs are clear . No pleural effusion or pneumothorax is present . No acute osseous abnormality is detected .
    OUTPUT:
    
No acute cardiopulmonary abnormality . Grossly unchanged dilatation of the ascending thoracic aorta , better assessed on the previous CT .