Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiac silhouette size remains mildly enlarged . The aorta is unfolded , unchanged . The mediastinal and hilar contours are otherwise unremarkable . Streaky bibasilar atelectasis is re - demonstrated . No focal consolidation , pleural effusion or pneumothorax is present . There are moderate degenerative changes noted in the imaged thoracolumbar spine with fusion hardware in the lumbar spine partially imaged .
    OUTPUT:
    
No acute cardiopulmonary abnormality .