Abstract：
BACKGROUND: The dermoscopic features of rosacea have already been reported. However, the current findings are incomplete, and little is known about phymatous rosacea. Hence, this study aimed to summarize and compare the dermoscopic features and patterns of three rosacea subtypes (erythematotelangiectatic [ETR], papulopustular [PPR], and phymatous [PHR]) in the Chinese Han population and to evaluate whether these features differ with patients\' genders, ages, and durations.
METHODS: Dermoscopic images of 87 rosacea patients were collected in non-polarized and polarized dermoscopy contact modes at 20-fold magnification. Dermoscopic features, including vessels, scales, follicular findings, and other structures, were summarized and evaluated.
RESULTS: The reticular linear vessels and red diffuse structureless areas of ETR were distinctive. For PPR, red diffuse structureless areas, reticular linear vessels, yellow scales, follicular plugs, and follicular pustules were typical dermoscopic criteria. The common dermoscopic features of PHR were: orange diffuse structureless areas, linear vessels with branches, perifollicular white color, orange focal structureless areas, and white lines. The following features statistically differed among the three rosacea subtypes: reticular linear vessels ( P < 0.001), unspecific linear vessels ( P = 0.005), linear vessels with branches ( P < 0.001), yellow scales ( P = 0.001), follicular plugs ( P < 0.001), perifollicular white color ( P < 0.001), red diffuse structureless areas ( P = 0.022), orange diffuse structureless areas ( P < 0.001), red focal structureless areas ( P = 0.002), orange focal structureless areas ( P = 0.003), white lines ( P < 0.001), follicular pustules ( P < 0.001), and black vellus hairs ( P < 0.001).
CONCLUSIONS: The dermoscopic patterns of ETR are red diffuse structureless areas and reticular linear vessels. For PPR, the pattern comprehends combinations of red diffuse structureless areas, reticular linear vessels, yellow scales, follicular plugs, and follicular pustules. Meanwhile, PHR is characterized by remarkable orange diffuse structureless areas, linear vessels with branches, perifollicular white color, orange focal structureless areas, and white lines.
METHODS: Dermoscopic images of 87 rosacea patients were collected in non-polarized and polarized dermoscopy contact modes at 20-fold magnification. Dermoscopic features, including vessels, scales, follicular findings, and other structures, were summarized and evaluated.
RESULTS: The reticular linear vessels and red diffuse structureless areas of ETR were distinctive. For PPR, red diffuse structureless areas, reticular linear vessels, yellow scales, follicular plugs, and follicular pustules were typical dermoscopic criteria. The common dermoscopic features of PHR were: orange diffuse structureless areas, linear vessels with branches, perifollicular white color, orange focal structureless areas, and white lines. The following features statistically differed among the three rosacea subtypes: reticular linear vessels ( P < 0.001), unspecific linear vessels ( P = 0.005), linear vessels with branches ( P < 0.001), yellow scales ( P = 0.001), follicular plugs ( P < 0.001), perifollicular white color ( P < 0.001), red diffuse structureless areas ( P = 0.022), orange diffuse structureless areas ( P < 0.001), red focal structureless areas ( P = 0.002), orange focal structureless areas ( P = 0.003), white lines ( P < 0.001), follicular pustules ( P < 0.001), and black vellus hairs ( P < 0.001).
CONCLUSIONS: The dermoscopic patterns of ETR are red diffuse structureless areas and reticular linear vessels. For PPR, the pattern comprehends combinations of red diffuse structureless areas, reticular linear vessels, yellow scales, follicular plugs, and follicular pustules. Meanwhile, PHR is characterized by remarkable orange diffuse structureless areas, linear vessels with branches, perifollicular white color, orange focal structureless areas, and white lines.
摘要：
背景：已经报道了红斑痤疮的皮肤特征。然而,目前的调查结果是不完整的，对酒渣鼻的认识还很少.因此，本研究旨在总结和比较三种酒渣鼻亚型的皮肤镜特征和模式(红斑血管扩张[ETR]，丘疹脓疱[PPR]，和phymatous[PHR])在中国汉族人群中，并评估这些特征是否与患者性别不同，年龄,和持续时间。
方法：在20倍放大倍数下以非极化和极化皮肤镜接触模式收集87例红斑痤疮患者的皮肤镜图像。皮肤特征，包括船只,scales,卵泡发现,和其他结构，进行了总结和评价。
结果：ETR的网状线性血管和红色弥漫性无结构区域是独特的。对于PPR，红色漫反射无结构区域，网状线性血管，黄色鳞片,卵泡塞,和卵泡脓疱是典型的皮肤镜标准。PHR的常见皮肤镜特征是：橙色弥漫性无结构区域，有分支的线性血管，毛囊周围白色，橙色焦点无结构区域，和白线。以下特征在三种酒渣鼻亚型之间具有统计学差异：网状线性血管（P<0.001），非特异性线性血管（P=0.005），有分支的线性血管（P<0.001），黄色鳞片（P=0.001），卵泡塞（P<0.001），毛囊周围白色（P<0.001），红色漫反射无结构区域（P=0.022），橙色弥漫性无结构区域(P<0.001)，红色无结构区域(P=0.002)，橙色无结构区域(P=0.003)，白线（P<0.001），卵泡脓疱(P<0.001),和黑色毫毛（P<0.001）。
结论：ETR的皮肤镜下模式为红色弥漫性无结构区和网状线性血管。对于PPR，该图案包含红色漫反射无结构区域的组合，网状线性血管，黄色鳞片,卵泡塞,和卵泡脓疱.同时,PHR的特点是显著的橙色弥漫性无结构区域，有分支的线性血管，毛囊周围白色，橙色焦点无结构区域，和白线。
方法：在20倍放大倍数下以非极化和极化皮肤镜接触模式收集87例红斑痤疮患者的皮肤镜图像。皮肤特征，包括船只,scales,卵泡发现,和其他结构，进行了总结和评价。
结果：ETR的网状线性血管和红色弥漫性无结构区域是独特的。对于PPR，红色漫反射无结构区域，网状线性血管，黄色鳞片,卵泡塞,和卵泡脓疱是典型的皮肤镜标准。PHR的常见皮肤镜特征是：橙色弥漫性无结构区域，有分支的线性血管，毛囊周围白色，橙色焦点无结构区域，和白线。以下特征在三种酒渣鼻亚型之间具有统计学差异：网状线性血管（P<0.001），非特异性线性血管（P=0.005），有分支的线性血管（P<0.001），黄色鳞片（P=0.001），卵泡塞（P<0.001），毛囊周围白色（P<0.001），红色漫反射无结构区域（P=0.022），橙色弥漫性无结构区域(P<0.001)，红色无结构区域(P=0.002)，橙色无结构区域(P=0.003)，白线（P<0.001），卵泡脓疱(P<0.001),和黑色毫毛（P<0.001）。
结论：ETR的皮肤镜下模式为红色弥漫性无结构区和网状线性血管。对于PPR，该图案包含红色漫反射无结构区域的组合，网状线性血管，黄色鳞片,卵泡塞,和卵泡脓疱.同时,PHR的特点是显著的橙色弥漫性无结构区域，有分支的线性血管，毛囊周围白色，橙色焦点无结构区域，和白线。
