FINDINGS:
Moderate cardiomegaly is unchanged.  The aorta remains tortuous and diffusely
 calcified.  The hilar contours are stable, with no evidence of pulmonary
 vascular congestion.  Minimal streaky opacity within the retrocardiac region
 likely reflects atelectasis.  There is no focal consolidation.  No pleural
 effusion or pneumothorax is identified.  Multilevel degenerative changes are
 present within the thoracic spine.

IMPRESSION:
Mild retrocardiac atelectasis.  No evidence of pulmonary edema.