Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The left chest tube has been removed and a new left pigtail catheter projects over the left lung apex . The previously seen large left pneumothorax is now very small , with lucency abutting the aortic knob . Bilateral patchy opacities are unchanged . No pleural effusion . The cardiac and mediastinal contours are stable . There are bilateral rib fractures and subcutaneous gas over the left chest wall .
    OUTPUT:
    
New left pigtail catheter and marked improvement in the left pneumothorax .