Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Mild enlargement of the cardiac silhouette is re - demonstrated . The mediastinal and hilar contours are unchanged with similar widening of the superior mediastinum , potentially due to mediastinal lipomatosis . The pulmonary vasculature is normal . Lungs are clear . No pleural effusion or pneumothorax is present . There are mild multilevel degenerative changes noted in the thoracic spine .
    OUTPUT:
    
No acute cardiopulmonary abnormality .