Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Right IJ central venous catheter ends in the mid SVC . A left chest wall transvenous pacer leads end in the right atrium with the ICD lead in the right ventricle , as expected . Opacification of the right lower hemithorax , largely pleural fluid while not significantly changed since ___ has increased substantially from ___ . The left lung remains clear . Moderate enlargement of the cardiac silhouette is unchanged . There is no pneumothorax .
    OUTPUT:
    
Persistent right lower hemithorax opacity , largely representing pleural fluid .