Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The small right pleural effusion with adjacent compressive atelectasis is unchanged compared with the prior study of ___ . A right - sided pigtail catheter is in unchanged position . There is no pneumothorax . The left chest wall biventricular pacemaker leads are in unchanged position . There may be a small left pleural effusion . There is stable moderate cardiomegaly .
    OUTPUT:
    
Unchanged small right pleural effusion .