Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is a similar large left - sided pleural effusion with associated atelectasis involving the left lower lobe and probably the lingula . The pleural effusion is similar in size , but there may be increased patchy opacity , probably atelectasis , associated with the lingula projecting over the left mid lung . In the right lower lung , a pleural effusion also persists , although smaller than the one seen on the left , although likely at least moderate in size . Although lung volumes are lower on this study , increased right lower lobe opacification , probably in the left lower lobe , appears new or increased . Otherwise , there has been no significant change .
    OUTPUT:
    
Increasing right lower lung opacity which may reflect an increase in atelectasis . The possibility of superimposed pneumonia is also a consideration in the appropriate setting , however .