FINDINGS:
Frontal and lateral views of the chest demonstrate a stable postoperative
 appearance of the left hemithorax status post thoracoplasty.  Right apical
 scarring persists.  Right lung base opacity partially obscuring right
 hemidiaphragm is new since prior exam.  Ill-defined left lung base opacity is
 also noted.  No pleural effusion is seen.  There is no pulmonary edema. 
 Emphysema predominantly involving upper lung zones is unchanged.  Hilar and
 mediastinal silhouettes are stable.  Heart size is normal.  Partially imaged
 upper abdomen is unremarkable.

IMPRESSION:
Bibasilar opacities are new since  exam, possibly atelectasis,
 aspiration, or infection in appropriate clinical setting.