Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest were obtained . The extreme lateral right lower hemithorax is not included on the image and AP pelvis catheter is not seen on the images . Given this , there has been interval increase in now moderate right pleural effusion with overlying atelectasis . Right base opacity may be due to combination of the above . However , an underlying consolidation is not excluded . Again , a large rounded opacity seen in the lung consistent with patient 's known mass . The left lung is clear . There is no pneumothorax . The cardiac and mediastinal silhouettes are stable .
    OUTPUT:
    
Interval increase in right - sided pleural effusion with overlying atelectasis . Right base opacity could represent combination of the above . However , underlying consolidation may also be present . Large right pulmonary mass again seen .