Rakowska Adriana
Department of Dermatology, CSK MSWiA, Woloska 137, Warsaw, Poland; Private Office "Dermatology Specialists", Warsaw, Poland.
J Dermatol Case Rep. 2009 Apr 5;3(1):14-9. doi: 10.3315/jdcr.2008.1021.
BACKGROUND: Trichoscopy is a newly developed method of hair image analysis, based on videodermoscopy of hair and scalp. OBJECTIVE: The aim of the study was to establish normal values and set the standard for trichoscopy in female population. PATIENTS AND METHODS: A total of 60 healthy females with no symptoms of hair or scalp diseases in anamnesis, upon clinical examination and in classic hair diagnostic techniques were included into the study. Mean age of these females was 36.5 (19-64) years. Trichoscopy was performed with the use of Fotofinder II. In all patients trichoscopy was performed in four locations (frontal area, occipital area, left and right temporal area). Hair and perifollicular area were evaluated. Measurements were performed with the application of the MoleAnalyzer software. RESULTS: Mean hair thickness was 0.061mm±0.008mm in frontal area vs. 0.057mm±0.007mm in occiput (p<0,001) and vs. 0.058mm±0.008mm in left temporal area and 0.059mm±0.008mm in right temporal area (p>0.005). The percentage of thin hairs (below 0.03mm) was 5%±4.3 in frontal area vs. 5.5%±4.8 in occiput vs. 6.4%±5.7 in right temporal area. The highest proportion of single-hair pilosebaceous units was observed in the temporal areas (29.1±16.2 vs. 23.2±13.5 in frontal and 18.4±12.1 in occipital areas; p<0.005). Based on study results, the norms for parameters measured in trichoscopy were assessed: mean hair thickness bigger than 0,053mm in frontal area and bigger than 0,050mm in others; percentage of thin hairs should be less than 10% in frontal and occipital area and less than 13% in temporal areas. The percentage of pilosebaceous units with single hair should be less than 35% in frontal area, 30% in occiput and 40% in temporal areas. Yellow dots were seen sporadically and they shouldn't be in a higher number than 3 in 4 fields of vision with 70-fold magnification in frontal area and only 1 in others. Perifollicular discoloration should be lower than 25% for frontal area, lower than 15% in occiput and 20% for temporal areas. CONCLUSION: A standard procedure to perform trichoscopy (hair and scalp videodermoscopy) for diagnostic purposes was developed. Norms of measurable parameters were established for the population of adult white females.
背景：毛发镜检是一种基于毛发和头皮视频皮肤镜检查新开发的毛发图像分析方法。 目的：本研究旨在确立女性人群毛发镜检的正常值并制定标准。 患者与方法：本研究纳入了60名健康女性，她们既往无毛发或头皮疾病症状，经过临床检查及经典毛发诊断技术评估。这些女性的平均年龄为36.5（19 - 64）岁。使用Fotofinder II进行毛发镜检。对所有患者在四个部位（额部、枕部、左侧颞部和右侧颞部）进行毛发镜检。评估毛发及毛囊周围区域。使用MoleAnalyzer软件进行测量。 结果：额部平均毛发厚度为0.061mm±0.008mm，枕部为0.057mm±0.007mm（p<0.001），左侧颞部为0.058mm±0.008mm，右侧颞部为0.059mm±0.008mm（p>0.005）。细发（直径小于0.03mm）的比例在额部为5%±4.3，枕部为5.5%±4.8，右侧颞部为6.4%±5.7。单根毛发皮脂腺单位比例最高的是颞部区域（29.1±16.2，额部为23.2±13.5，枕部为18.4±12.1；p<0.005）。根据研究结果，评估了毛发镜检测量参数的标准：额部平均毛发厚度大于0.053mm，其他部位大于0.050mm；额部和枕部细发比例应小于10%，颞部区域应小于13%。额部单根毛发皮脂腺单位比例应小于35%，枕部小于30%，颞部小于40%。黄色斑点偶尔可见，在额部70倍放大的4个视野中数量不应超过3个，其他部位仅1个。毛囊周围色素沉着在额部应低于25%，枕部低于15%，颞部为20%。 结论：开发了一种用于诊断目的的毛发镜检（毛发和头皮视频皮肤镜检查）标准程序。确立了成年白人女性群体可测量参数的标准。
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