Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Left - sided chest tube remains in place , with no visible pneumothorax . Cardiomediastinal contours are stable in appearance . Improving aeration at the lung bases , with residual atelectasis and / or consolidation remaining . Small pleural effusions are again demonstrated .
    OUTPUT:
    
Apparent resolution of small left pneumothorax with chest tube remaining in place .