Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Previously noted right - sided central venous catheter is no longer visualized . There are moderate bilateral pleural effusions . Prior bilateral apical pneumothoraces are not identified . Superiorly the lungs are clear . The cardiac silhouette is enlarged but stable . Median sternotomy wires and mediastinal clips are noted .
    OUTPUT:
    
Persistent moderate bilateral effusions . Prior bilateral apical pneumothoraces are no longer seen .