Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A right pigtail catheter projects over the left lower lung zone . A trace left apical pneumothorax persists . Unchanged atelectasis of the left lung base . The lungs appear hyperexpanded . The size the cardiac silhouette is within normal limits . Decreasing subcutaneous emphysema over the left chest wall .
    OUTPUT:
    
Persisting trace left apical pneumothorax with a left basilar pleural catheter present .