Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is normal . The mediastinal and hilar contours are normal . The pulmonary vasculature is normal . Lungs are clear . There has been interval removal of a right - sided chest tube . No pneumothorax is seen . There is a small left pleural effusion .
    OUTPUT:
    
No evidence of pneumothorax status post chest tube removal .