Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP view of the chest . Two right - sided chest tubes are unchanged in position . No focal consolidation or pleural effusion . The cardiomediastinal and hilar contours are normal . Small amount of subcutaneous emphysema involving the right chest , also unchanged . No evidence of pneumothorax .
    OUTPUT:
    
No evidence of pneumothorax .