Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Moderate to large left basal pneumothorax has increased in size . Other pulmonary findings are stable since prior . By the time this particular radiograph was read , there was placement of left pleural catheter on the follow - up radiograph there was already performed
    OUTPUT:
    
Worsened left basilar moderate to large pneumothorax .