FINDINGS:
AP and lateral views of the chest.  Posterior fixation hardware in
 the thoracic spine is several years old.  Elevation of the right lung base has
 been increasing slowly over the past  years. Small right pleural effusion
 is comparable to , slightly larger than on . Left
 subclavian line ends in the distal SVC.  Heart size is normal. 
 Cardiomediastinal and hilar contours are normal.  Right basilar linear
 atelectasis is unchanged.  No consolidation or pulmonary edema is present.

IMPRESSION:
No evidence of cardiac decompensation. Chronic unexplained
 elevation, right lung base and chronic, small to moderate right pleural
 effusion.