Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There has been interval placement of left - sided pigtail catheter . There has been interval re-expansion of the left lung with some residual atelectasis and a small residual left apical pneumothorax . There is no longer mediastinal shift .
    OUTPUT:
    
Interval placement of left pigtail catheter with re-expansion of the left lung . Suspected small residual left - sided pneumothorax .