Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There has been interval placement of a left - sided chest tube with tip terminating near the left apex . There has been re-expansion of the left lung , with only a minimal residual amount of the pneumothorax seen in the left apex . Streaky linear opacity in the left lung base likely reflects atelectasis . Previously noted rightward shift of mediastinal structures has resolved . The right lung is clear . There is no pulmonary vascular congestion . No acute osseous abnormalities are identified . Minimal blunting of the left costophrenic sulcus may suggest a small left pleural effusion .
    OUTPUT:
    
Interval placement of left - sided chest tube with re-expansion of the left lung and mild left basilar atelectasis . Tiny residual left apical pneumothorax .