Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A left typically directed chest tube is present . A trace left apical pneumothorax persists . Slight increase in left basilar atelectasis . No pleural effusion . Relative lucencies in the right lower lung zone may reflect underlying emphysematous change . The size the cardiomediastinal silhouette is within normal limits . Unchanged subcutaneous gas .
    OUTPUT:
    
Persisting trace left apical pneumothorax with a chest tube in place . Extensive subcutaneous emphysema unchanged