de Moura Larissa Hanauer, Duque-Estrada Bruna, Abraham Leonardo Spagnol, Barcaui Carlos Baptista, Sodre Celso Tavares
Department of Hair Disorders, Professor Rubem David Azulay Dematology Institute, Rio de Janeiro, Brazil.
J Dermatol Case Rep. 2008 Dec 27;2(4):52-4. doi: 10.3315/jdcr.2008.1020.
Dermoscopy has been established as an indispensable tool in the diagnosis and follow up of hair disorders. In alopecia areata, dermoscopy of active disease shows yellow dots, dystrophic hairs, as well as cadaverized (black dots) and exclamation mark hairs. Alopecia areata has been reported to occur equally among races, however, until date, there are no published data regarding dermoscopic findings in African-American patient.
We report a case of scalp dermoscopy of alopecia areata in an African-American patient that shows a diffuse honeycomb-like pigmented network, few yellow dots and white dots.
This case shows that skin color may affect dermoscopic findings in alopecia areata. In our African-American patient with alopecia areata dermoscopy showed a diffuse honeycomb-like pigmented network, which was previously considered characteristic for androgenic alopecia and white dots, which were considered characteristic for cicatricial alopecia. Further studies are needed to elucidate the presence of white dots in alopecia areata.
皮肤镜已成为毛发疾病诊断和随访中不可或缺的工具。在斑秃中,活动性疾病的皮肤镜表现为黄点、营养不良毛发,以及残根(黑点)和感叹号样毛发。据报道,斑秃在各个种族中的发病率相同,然而,迄今为止,尚无关于非裔美国患者皮肤镜检查结果的公开数据。
我们报告了一例非裔美国斑秃患者的头皮皮肤镜检查病例,其表现为弥漫性蜂窝状色素沉着网络、少量黄点和白点。
该病例表明肤色可能影响斑秃的皮肤镜检查结果。在我们的非裔美国斑秃患者中,皮肤镜显示出弥漫性蜂窝状色素沉着网络,这一表现之前被认为是雄激素性脱发的特征,以及白点,这一表现之前被认为是瘢痕性脱发的特征。需要进一步研究以阐明斑秃中白点的存在情况。