Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The patient is status post median sternotomy and ascending aortic repair . The cardiac silhouette size remains moderately enlarged . The aorta is remains mildly enlarged and tortuous but this is unchanged . The mediastinal and hilar contours are otherwise unchanged . The pulmonary vasculature is normal . No focal consolidation , pleural effusion or pneumothorax is visualized . Multilevel degenerative changes within the imaged thoracic spine are noted with ossification of the anterior longitudinal ligament .
    OUTPUT:
    
No acute cardiopulmonary abnormality .