Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A single - lead pacemaker device appears unchanged with its lead terminating in the right ventricle . A chest tube again projects over the lower right hemithorax , not significantly changed . There is a small amount of intrathoracic air which is not unanticipated in the setting of a chest tube . A moderate hydropneumothorax shows no definite overall change allowing for differences in orientation . Mass - like opacities again project over the lower right chest with a free flowing component to the effusion and substantial volume loss in the right hemithorax . The left lung remains clear and hyperexpanded . There is no pleural effusion on the left .
    OUTPUT:
    
Perhaps mild increase in hydropneumothorax but with chest tube remaining in place and no striking change . Similar mass - like opacities in the right lower lung previously shown to probably reflect partial collapse of the right lung .