Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A left apical chest tube is unchanged in position . Since prior , there has been decrease in size of a left apical pneumothorax , now small in size . Extensive subcutaneous emphysema on the left is not significantly changed . The right lung is grossly clear . The cardiomediastinal contour is unchanged . Elevation of the left hemidiaphragm has not changed .
    OUTPUT:
    
Decreased size of a left apical pneumothorax , now small . Extensive left - sided subcutaneous emphysema unchanged .