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寻常痤疮的皮损形态

来源:[标签:来源] | 发布时间:2011-05-05 14:55:14 | www.chinesejk.com

  寻常痤疮是痤疮最常见的一个类型,它的皮损形态各种各样,常数种同时存在,但其初起损害均为与毛囊口一致的、淡黄色或正常皮色的圆锥形丘疹,毛囊口充塞着小栓塞,顶端常因氧化而变黑,挤压时可有乳白色脂栓跳出,中医形容它为“头黑体白”,西医则称之为黑头粉刺;若皮脂腺完全闭塞,可形成非炎症性丘疹;如有感染,则为炎症性丘疹;若炎症加剧,丘疹顶端可出现米粒至豌豆大的小脓疱,破溃或吸收后留下暂进性色素沉着或小凹坑状疤痕;如果炎症继续扩大深入,则于皮下形成大小不等淡红色或暗红色结节,或高出皮面。此结节可较长时间存在,或自然吸收,或化脓破溃形成疤痕。有的损害呈黄豆至指端大小的椭圆开囊肿,暗红色或呈正常肤色,按压时有波动感,炎症反应往往不重,经久不愈,可化脓形成脓肿,附近数个脓肿汇合时,可形成聚合性痤疮。

(编辑:小米 )

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