Lymphocytic UV Autofluorescence: A Novel Ultraviolet-Induced Fluorescence Dermoscopy Finding in Lichen Nitidus – A Series of Two Cases.

Dynamic blinking/winking of the brown dots–corresponding histopathologically to the ball-like lymphocytic infiltrates–into blue-white fluorescence (yellow arrows) when switching from cross-polarised mode (DermLite DL5, coupled with iPhone 12 camera) to UVFD (DermLite DL5 Wood-Mode 365 nm, coupled with iPhone 12 camera), illustrating the Lymphocytic UV Autofluorescence of Lichen Nitidus.

当从交叉偏振模式（搭配iPhone 12相机的DermLite DL5皮肤镜）切换至紫外荧光检测模式（UVFD，即DermLite DL5伍德模式365nm，搭配iPhone 12相机）时，在组织病理学上对应球样淋巴细胞浸润的棕褐色斑点会呈现动态闪烁变化，并显现蓝白色荧光（黄色箭头标注），该现象可用于阐释光泽苔藓（Lichen Nitidus）的淋巴细胞紫外自发荧光特征。