Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP portable upright view of the chest . Interval placement of a right pigtail chest tube without re-expansion of the right lung suggests malpositioned chest tube . There is a persistent moderate in size right pneumothorax with associated partial collapse of the right lung . Mediastinum is not shifted . Left lung remains clear .
    OUTPUT:
    
Persistent moderate right pneumothorax despite the presence of a chest tubes suggests improper chest tube placement .