Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: As compared to prior chest radiograph from ___ , a small right apical pneumothorax is essentially unchanged . Right - sided chest tubes remain in unchanged position . There has been interval improvement of a right - sided pleural effusion . There is persistent opacification of the right upper lobe consistent with a consolidation . Opacity along the right lateral chest wall is likely post-surgical in nature . The left lung is clear .
    OUTPUT:
    
Unchanged small right apical pneumothorax .