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Nevi are mostly benign , do not worry too much .

色素痣多为良性，不必过虑。

The clinical appearance of clonal nevi ( inverted type a nevi )

克隆痣的临床表现(反向a型痣)

Most nevi grow slowly , or not changed for years , but once there , they rarely natural healing .

大多数色素痣生长缓慢，或持续多年没有变化，但一旦存在，就很少会自然消退。

Obective to evaluate the clinical efficiency of amniotic membrane transplantation in treatment of conjunctival nevi .

目的探讨羊膜移植治疗结膜色素痣临床应用的可行性及疗效。

Dysplastic nevi may , however , occur on the covered areas ( e.g. , hairy scalp or groin ) .

增生痣,但仅可发生于复盖地区(如头皮或腹股沟毛).