Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Compared to the prior radiograph from noon , there has been interval removal of left chest tube with essentially unchanged degree of left apical pneumothorax , still moderate . Unchanged cardiomediastinal contours and normal appearing right lung . Branching density in the superior segment of the left lower lobe is still present . This could be further evaluated via CT .
    OUTPUT:
    
Unchanged left moderate - sized pneumothorax status post left chest tube removal .