Rakowska Adriana, Slowinska Monika, Olszewska Malgorzata, Rudnicka Lidia
Department of Dermatology, CSK MSW, Woloska 137, 02-507 Warsaw, Poland.
Acta Derm Venereol. 2014 May;94(3):303-6. doi: 10.2340/00015555-1674.
Differential diagnosis of trichotillomania is often difficult in clinical practice. Trichoscopy (hair and scalp dermoscopy) effectively supports differential diagnosis of various hair and scalp diseases. The aim of this study was to assess the usefulness of trichoscopy in diagnosing trichotillomania. The study included 370 patients (44 with trichotillomania, 314 with alopecia areata and 12 with tinea capitis). Statistical analysis revealed that the main and most characteristic trichoscopic findings of trichotillomania are: irregularly broken hairs (44/44; 100% of patients), v-sign (24/44; 57%), flame hairs (11/44; 25%), hair powder (7/44; 16%) and coiled hairs (17/44; 39%). Flame hairs, v-sign, tulip hairs, and hair powder were newly identified in this study. In conclusion, we describe here specific trichoscopy features, which may be applied in quick, non-invasive, in-office differential diagnosis of trichotillomania.
在临床实践中，拔毛癖的鉴别诊断往往很困难。毛发镜检查（毛发和头皮皮肤镜检查）有效地辅助了各种毛发和头皮疾病的鉴别诊断。本研究的目的是评估毛发镜检查在诊断拔毛癖中的实用性。该研究纳入了370例患者（44例拔毛癖患者、314例斑秃患者和12例头癣患者）。统计分析显示，拔毛癖主要且最具特征性的毛发镜表现为：毛发不规则断裂（44/44；100%的患者）、V字征（24/44；57%）、火焰状毛发（11/44；25%）、毛干粉末（7/44；16%）和卷曲毛发（17/44；39%）。火焰状毛发、V字征、郁金香状毛发和毛干粉末是本研究新发现的。总之，我们在此描述了特定的毛发镜特征，可用于拔毛癖的快速、无创、门诊鉴别诊断。
