FINDINGS:
Heart is normal size and cardiomediastinal silhouette is stable.  The lungs
 are hyperexpanded, similar to the prior examination.  There is no focal
 consolidation, pleural effusion, or pneumothorax.  There is interval
 redistribution of the pulmonary vasculature with cephalization. Multilevel
 degenerative changes in the spine are noted.

IMPRESSION:
Redistribution of the pulmonary vasculature with cephalization is consistent
 with pulmonary venous engorgement and could be positional or represent mild
 pulmonary edema.