Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There has been interval placement of a left chest tube with pigtail projecting over the lateral left upper hemithorax . There has been interval decrease in size of the previously noted left hydropneumothorax , now small , with re-expansion of the left lung . Small amount of subcutaneous emphysema is seen within the left lateral chest wall . Cardiac and mediastinal contours are unchanged , with the heart size within normal limits . Right lung is clear . Pulmonary vasculature is normal . No acute osseous abnormality is present .
    OUTPUT:
    
Interval placement of left chest tube with decreased size of the left hydropneumothorax , now small , and re-expansion of the left lung .