Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The pigtail catheter in the right pleural space is unchanged in appearance . The right - sided pneumothorax has increased in size compared to ___ . Associated flattening of the right hemidiaphragm is unchanged . In the left hemithorax , there are no focal consolidations , pleural effusions or pneumothorax . The heart and mediastinum are within normal limits . No acute osseous abnormalities .
    OUTPUT:
    
Right - sided pneumothorax is slightly larger compared to ___ .