Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is a small left apical pneumothorax . The pneumothorax is not appreciated in the prior exam from ___ , likely due to suboptimal patient position . Left chest tube is in unchanged position . Small opacities surrounding the chest tube entrance site is stable . There is no new focal opacity . There is no large pleural effusion . Left clavicular surgical hardware is intact .
    OUTPUT:
    
Small left apical pneumothorax .