Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Large right pleural effusion with overlying atelectasis is re - demonstrated , grossly stable . Chain sutures are seen overlying bilateral upper lungs and there is persistent right apical opacity . No pneumothorax is seen . The right aspect of the cardiac silhouette is not well assessed due to the large right pleural effusion although there appears to be mediastinal shift to the left , stable . The left lung is clear . Aortic knob calcification is seen . There is diffuse osteopenia .
    OUTPUT:
    
Persistent large right pleural effusion with overlying atelectasis .