FINDINGS:
Moderate to large left pleural its chin fusion is seen with overlying
 atelectasis.  A pigtail catheter is seen overlying the left lower chest.  The
 right lung is overall hyperinflated.  Right greater left biapical pleural
 thickening is seen.  No large pneumothorax is seen.  The cardiac silhouette is
 mildly enlarged.  Mediastinal contours are unremarkable.

IMPRESSION:
Moderate to large left pleural effusion with overlying atelectasis.  A pigtail
 catheter projects over the left lower hemithorax, posteriorly.