Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The right chest tube has been repositioned . There has been slight increase in the lung expansion although there is still a large right pneumothorax . There is also increased subcutaneous emphysema at the right chest wall . The degree of leftward shift has decreased since the prior study . The left lung is clear . The cardiomediastinal silhouette is within normal limits . No pleural effusion is identified .
    OUTPUT:
    
Slight interval reexpansion of the right lung due to change in positioning of the chest tube although still a large pneumothorax remains .