色素痣也叫黑痣,其色素多少,表面形态及隆起程度很不一致,是一种良性肿瘤,但反复刺激可能演变成恶性黑痣。根据黑色素瘤对低温敏感的论点,从1975年开始对眼睑部色素痣使用液氮冷冻治疗,共60例,经长期观察认为疗效较好,总结如下。 Pigmented nevus, also known as mole, the number of its pigment, the surface morphology and the degree of uplift is very inconsistent, is a benign tumor, but repeated stimulation may evolve into malignant mole. According to melanoma hypothermia-sensitive point of view, from 1975 on the eyelid nevus using liquid nitrogen cryotherapy, a total of 60 cases, the long-term observation that the better efficacy, summarized as follows.