IMPRESSION:
Large right pleural effusion and severe right lung atelectasis have both
 increased since . The lumen of the right bronchial tree is
 obliterated close to the carina, and some of the atelectasis could be due to
 retained secretions the right hilar mass is largely responsible for it. There
 is also greater subsegmental atelectasis in the left lower lung.  There is no
 pneumothorax. Left pleural effusion is small.
 
 Right heart border is obscured, but cardiomegaly is present.