Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is interval placement of a left - sided pigtail catheter with interval decrease in the left pneumothorax which could still be seen superolaterally . There is volume loss at both bases and given the opacity early infiltrates ca n't be excluded in these regions . The upper lungs are clear
    OUTPUT:
    
Decreased left pneumothorax .