Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: there is a moderate to large left pneumothorax that is increased compared to the studies from the prior day . There is associated collapse of the lung with medially and some mild mediastinal shift to the right . There is left - sided subcutaneous emphysema . The fracture in the left clavicle is again visualized .
    OUTPUT:
    
Moderate to large left pneumothorax is increased