FINDINGS:
The right lung is clear.  There is a moderate to large left pleural
 effusion with overlying atelectasis, underlying consolidation is not excluded.
 Retrocardiac atelectasis is also seen. Cardiac silhouette cannot be evaluated
 given the left lower lobe opacity. No pneumothorax is seen.

IMPRESSION:
Left pleural effusion and overlying atelectasis; underlying
 consolidation cannot be excluded.