Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Again seen is a right pneumothorax , slightly increased in size compared to ___ , which may be due to expiratory phase at which current study was taken . There is a small right pleural effusion , consistent with history of interval talc pleurodesis . Right - sided pigtail catheter is again seen , slightly superior in position compared to the prior exam .
    OUTPUT:
    
1 . Persistent small right pneumothorax , may appear larger due to expiratory phase . 2 . New pleural effusion , likely due to interval top pleurodesis . 3 . Apparent change and pigtail catheter . Please correlate clinically .