Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The left - sided chest tube is in place . No obvious residual pneumothorax is present . The heart and mediastinal contours are within normal limits and exhibit no shift . There is no hemidiaphragmatic flattening . The lungs are clear .
    OUTPUT:
    
Left chest tube in place without evidence of residual pneumothorax .