Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There has been interval placement of right - sided chest tube with pigtail projecting over the right apical region . Previously noted moderate to large right pneumothorax has essentially resolved , and there has been re-expansion of the right lung . Minimal residual opacity within the right lung base may reflect atelectasis . No large pleural effusion is demonstrated . Minimal streaky atelectasis also seen in the left lung base . The cardiac and mediastinal contours are within normal limits , and the pulmonary vascularity is normal .
    OUTPUT:
    
Interval placement of right pigtail chest tube with resolution of previously noted right pneumothorax and re-expansion of the right lung . Bibasilar atelectasis .