1.Twenty-seven tissue expanders were inserted in 14 children (age range: 1.5 to 15 years) of pigmented naevi, h emangioma and scar tissue with exteriorization of the injection port.

1.应用国产皮肤软组织扩27只，采用注射壶及连接管外置的方法，对14例1.5-15岁痣、血管瘤及烧伤瘢痕的儿实行扩术。