Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable semi-upright radiograph of the chest demonstrates a right - sided chest tube . There is a moderate to large right - sided hydropneumothorax . There is slight interval improvement in aeration of the right lower lung . The mediastinum appears shifted to the right . The left lung appears grossly clear . Prominence of the mediastinum relates to lymphadenopathy . The heart is not enlarged . Collapsed right upper lobe is better seen in prior CT .
    OUTPUT:
    
1 . Interval placement of a right - sided chest tube . 2 . right - sided hydropneumothorax . 3 . Slight interval improvement in aeration of the right lung . Persisting collapse of the right upper lobe 4 . The mediastinum appears shifted to the right .