FINDINGS:
As compared to the previous radiograph, the small left pleural
 effusion is constant and limited to the costophrenic sinus.  The right pleural
 effusion has mildly increased in extent and occupies approximately half of the
 right hemithorax.
 
 Unchanged moderate cardiomegaly, subsequent areas of atelectasis at the left
 and right lung bases.  The vertebral stabilization devices are in unchanged
 position.