背景：关于病变和患者相关变量与蓝痣的皮肤镜特征之间的相关性知之甚少。该研究的目的是对与患者和病变相关变量相关的蓝痣进行皮肤镜分析。对以前没有报道过患病率的结构特别感兴趣。方法：这是一个双中心，回顾性研究,其中包括组织病理学证实的蓝痣的分析（n=93）。结果：根据患者的性别和年龄，观察到的皮肤镜特征的频率没有差异。粉红色的无结构区域在I/IIFitzpatrick皮肤光型患者以及光损伤皮肤患者中更为常见，而棕色/蓝灰色背景上的蓝色突出皮肤标记仅出现在光型III患者中。以前未报告的蓝痣患病率的结构是肤色圆圈（以32.3％存在），灰色圆圈(2.2%)，无色素沉着的卵泡口（18.4%；仅存在于面部），棕色背景上的蓝色皮肤标记（18.2％；仅在四肢上检测到）和深棕色多边形（一个病变位于下肢）。结论：皮肤镜下蓝痣的表现可能因患者的光型和病变大小/位置而有所不同，而不是性别和年龄。
Background: Little is known about the correlation between lesion- and patient-related variables and the dermoscopic features of blue nevi. The aim of the
study was dermoscopic analysis of blue nevi in association with patient- and lesion-related variables, with a special interest in structures whose prevalence has not been previously reported. Methods: This was a double-center, retrospective
study, which included the analysis of histopathologically confirmed blue nevi (n = 93). Results: There was no difference in the frequency of the observed dermoscopic features according to patients\' gender and age. Pink structureless areas were more common in patients with I/II Fitzpatrick skin phototypes as well as in the patients with photodamaged skin, while blue prominent skin markings over brownish/blue-gray background occurred exclusively in patients with phototype III. Structures of previously unreported prevalence in blue nevi were skin-colored circles (present in 32.3%), gray circles (2.2%), follicular ostia with no pigmentation (18.4%; present exclusively on the face), blue skin markings over brownish background (present in 18.2%; detected only on the limbs) and dark brown polygons (one lesion located on the lower extremity). Conclusion: Dermoscopic presentation of blue nevi may vary according to the patient\'s phototype and lesion size/localization rather than gender and age.
PDF(Sci-hub)