Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There has been interval placement of a right - sided chest pigtail catheter with significant interval decrease in large right pneumothorax , which is now moderate to large but substantially decreased in size as compared to the prior study . No evidence of tension is seen . A new large amount of subcutaneous emphysema is seen overlying the right axilla and right chest wall , possibly extending in to the right upper arm , new since the prior study . There continues to be atelectasis of the right lung . The right internal jugular central venous catheter is grossly stable in position , given differences in patient position . The appearance of the left lung is stable .
    OUTPUT:
    
Extensive new right - sided subcutaneous emphysema . Interval placement of right chest pigtail catheter with significant interval decrease in right pneumothorax , but with moderate to large right pneumothorax persisting . No definite tension seen .