Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: As compared to chest radiograph from the same day . New right - sided pigtail catheter . Note the right apex is not completely included in this radiograph . Subtle lucency of the right base , could be possible tiny basal pneumothorax . Right upper lobe opacity has marginally improved . Moderate left - sided effusion and dependent opacities have not substantially changed . Dobhoff tube and left - sided PICC in similar position .
    OUTPUT:
    
Note the right apex is not completely imaged , possible tiny basal pneumothorax . Improved right upper lobe opacity .