Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Post-operative changes are seen at the right lung base , including pleural thickening and surgical clips . There is minimal left lower lung atelectasis . Streaky opacities in the lateral right mid lung could be areas of scarring . The heart size is normal . The mediastinal contours are normal . There is no pneumothorax . Multilevel degenerative changes of the thoracolumbar spine are seen .
    OUTPUT:
    
No acute cardiac or pulmonary process .