Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The right - sided chest tube is slightly lower in the chest than it was previously . There is a small right apical pneumothorax . There is a small right pleural effusion . . There is volume loss at the right base , but no focal infiltrate . The left lung is clear .
    OUTPUT:
    
Small right apical pneumothorax , increased compared to prior .