Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The left pleural catheter has be removed . There is expected subcutaneous emphysema . There is no pneumothorax . There is patchy opacity in the left lung base which could represent atelectasis as seen previously . The remainder of the lungs and mediastinal structures are unchanged .
    OUTPUT:
    
Interval removal of left pleural catheter . No pneumothorax .