Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Left chest wall transvenous pacing device with lead ending in the right atrium , as expected . A right pleural effusion has increased from prior , although the exact size is difficult to discern given a probable subpulmonic component . Heart is top - normal in size . Mediastinal contour is normal . Lungs are clear .
    OUTPUT:
    
Right pleural effusion , increased from ___ .