Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The right chest tube is in similar position to this morning at 08 : 16 . Right lateral chest wall subcutaneous emphysema and subcutaneous emphysema in the neck are not significantly changed from this morning . Heart size is normal . The mediastinal and hilar contours are normal . The pulmonary vasculature is normal . No focal consolidation , pleural effusion , or pneumothorax . Pneumomediastinum in the neck is stable .
    OUTPUT:
    
No pneumothorax . No significant changes .