Department of Dermatology, Pemphigus Research Unit, Razi Hospital, Tehran University for Medical Sciences, Tehran, Iran.
J Cosmet Dermatol. 2022 Feb;21(2):669-673. doi: 10.1111/jocd.14149. Epub 2021 Jun 10.
Changes in the appearance of melanocytic nevi have been increasingly reported following hair removal lasers. This could be a source of anxiety in patients doing cosmetic hair removal lasers. Moreover, taking biopsy of any changed nevus following laser is not routinely practical. Therefore, this study was designed to describe dermoscopic changes happened on acquired junctional melanocytic nevi after photo-depilation methods.
In this prospective study, 66 melanocytic nevi in 27 patients were chosen. Dermoscopic images were taken at the baseline visit and 2 months following single session of hair removal laser. Afterward, the before and after laser images were compared for any change in the structure and color of the nevi.
Dermoscopic images showed alterations in nevi following laser including changes in size in 33%, color in 63.6%, newly developed asymmetry in 12.1%, and regression in 3% of nevi. Besides, alteration in reticular and dots and globules pattern was found in 92.5% and 69.32%, respectively.
Hair removal laser could induce considerable changes in appearance of acquired junctional melanocytic nevi. Dermoscopic study before and after the process could help to avoid unnecessary excision of suspected lesions.
越来越多的人报告称，在接受激光脱毛后，黑素细胞痣的外观发生了变化。这可能会给接受美容激光脱毛的患者带来焦虑。此外，激光治疗后对任何变化的痣进行活检并不常见。因此，本研究旨在描述光解性脱毛方法后获得性交界性黑素细胞痣的皮肤镜变化。
在这项前瞻性研究中，选择了 27 名患者的 66 个黑素细胞痣。在基线就诊时和单次激光脱毛后 2 个月拍摄皮肤镜图像。然后，比较激光前后的图像，以观察痣的结构和颜色是否有任何变化。
激光治疗后黑素细胞痣的皮肤镜图像显示出变化，包括 33%的痣大小改变、63.6%的颜色改变、12.1%的新出现不对称性和 3%的痣退化。此外，92.5%和 69.32%的痣分别出现网状和点及球状模式的改变。
激光脱毛可引起获得性交界性黑素细胞痣的外观发生明显变化。治疗前后的皮肤镜检查有助于避免不必要地切除可疑病变。
