FINDINGS:
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.

IMPRESSION:
No acute cardiac or pulmonary process.