Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Small right pleural effusion is unchanged . Right lower lobe opacity is unchanged , likely representing rounded atelectasis . Moderate right pneumothorax is unchanged . Bilateral calcified pleural plaques are again noted . Cardiomediastinal and hilar contours are stable . Left - sided pacemaker .
    OUTPUT:
    
No change in moderate right pneumothorax .