FINDINGS:
As compared to the previous radiograph, a right pleural drain was placed.
 There is no evidence of pneumothorax. The pre-existing moderate right pleural
 effusion has substantially decreased in extent.  As a consequence, the
 pre-existing right basilar atelectasis have also decreased.
 
 Unchanged normal appearance of the cardiac silhouette. Unchanged appearance of
 the mediastinum and of the left lung.

IMPRESSION:
Substantially decrease of right pleural effusion and subsequent atelectasis of
 the right pleural drain placement.