Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Large - bore right - sided central venous catheter , is dual lumen with lumens terminating in the distal SVC and SVC / cavoatrial junction . There are trace pleural effusions . Previously seen right base opacity has decreased in the interval with some residua remaining . No pneumothorax is seen . The cardiac and mediastinal silhouettes are stable .
    OUTPUT:
    
Trace pleural effusions . Decrease in right base opacity with some residual remaining . Dual lumen right - sided dialysis catheter appears to terminate in the distal SVC and distal SVC / cavoatrial junction .