IMPRESSION:
AP chest compared to :
 
 Moderate-to-large right pneumothorax is smaller than it was at 8:25 a.m., but
 larger than on  at 9:24 p.m. prior to the exacerbation.  As noted
 previously, the horizontal orientation of the right pleural tube suggests that
 it may be fissural.
 
 New consolidation at the medial aspect of the right lung base is probably
 residual atelectasis.  Left lung clear.  Tiny right pleural effusion is
 expected following margin pneumothorax.  Heart size normal.
 
 Dr.  was paged at 12:30 p.m., one minute following my recognition of
 the findings.