Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral radiographs of the chest demonstrate no pneumothorax . As compared to the prior radiograph , the left chest tube has been removed and there is small amount of subcutaneous emphysema in the left chest wall . The right lung is unchanged in appearance .
    OUTPUT:
    
No evidence of left pneumothorax status post left chest tube removal .