Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single semi-erect AP portable view of the chest was obtained . Again seen is near - complete opacification of the right hemithorax , similar to prior . In the interval since the prior study , there has been development of a moderate - to - large left pleural effusion with overlying atelectasis , underlying consolidation can not be excluded . The visualized cardiac and mediastinal silhouettes are stable with the right aspect not well evaluated due to the right hemithorax opacification .
    OUTPUT:
    
Interval development of moderate - to - large left pleural effusion with overlying atelectasis , underlying consolidation can not be excluded . Persistent near - complete opacification of the right hemithorax .