Pyles Josephine, Palmer Victoria, Balding Emily, Larrondo Jorge, McMichael Amy
J Drugs Dermatol. 2025 Jul 1;24(7):708-712. doi: 10.36849/JDD.9139.
Alopecia areata (AA) has a higher prevalence in populations with skin of color, yet the trichoscopic features in this population remain underexplored.
To identify trichoscopic findings present in a cohort of Black patients with a diagnosis of alopecia areata.
The electronic medical records system was used to retrospectively analyze the trichoscopic images and medical records of 10 Black patients with a clinical diagnosis of AA who were seen and treated at an academic hair loss clinic between 2019 and 2024. Clinical and trichoscopic images of the scalp were reviewed independently by two board-certified dermatologists. Statistical analysis using the Mann-Whitney U Test highlighted significant trends in the occurrence of these features across varying severity levels as per the Severity of Alopecia Tool (SALT) scores.
Commonly reported features such as vellus hairs, black dots, and tapering hairs, alongside novel features including peripilar hyperpigmentation, follicular hypopigmentation, diffuse erythema, uninterrupted honeycomb patterns, and perifollicular scale were observed. No statistical significance was noted between the presence of trichoscopic features and the correlated SALT score.
This study underscores the need for improved understanding and documentation of AA in Black individuals. Identification of trichoscopic features in AA will aid physicians with diagnosis and decrease the threshold for diagnosis of co-existing alopecias.
斑秃（AA）在有色人种人群中的患病率较高，但该人群的毛发镜特征仍未得到充分研究。
确定一组被诊断为斑秃的黑人患者的毛发镜检查结果。
利用电子病历系统对2019年至2024年间在一家学术性脱发诊所就诊并接受治疗的10例临床诊断为斑秃的黑人患者的毛发镜图像和病历进行回顾性分析。两名获得委员会认证的皮肤科医生独立审查了头皮的临床和毛发镜图像。使用曼-惠特尼U检验进行的统计分析突出显示了根据脱发严重程度工具（SALT）评分，这些特征在不同严重程度水平上出现的显著趋势。
观察到常见特征，如毳毛、黑点和锥形毛发，以及新特征，包括毛囊周围色素沉着、毛囊色素减退、弥漫性红斑、不间断的蜂窝状图案和毛囊周围鳞屑。毛发镜特征的存在与相关的SALT评分之间未发现统计学意义。
本研究强调了加强对黑人斑秃患者的了解和记录的必要性。识别斑秃的毛发镜特征将有助于医生进行诊断，并降低对并存脱发症的诊断阈值。
