Lacarrubba Francesco, Verzì Anna Elisa, Micali Giuseppe
Dermatology Clinic, University of Catania, Catania, Italy.
Skin Appendage Disord. 2019 Apr;5(3):142-145. doi: 10.1159/000493741. Epub 2019 Jan 3.
The purpose of the study was to describe the trichoscopic features of pseudonits and to assess the usefulness of trichoscopy in their differential diagnosis.
A retrospective study was performed on those patients seen for the suspicion of head or pubic lice and who underwent trichoscopy with polarized light at ×10 magnification for a more accurate diagnosis. Forty-two patients (28 males/14 females, mean age: 34.5 years, range: 7-59) were evaluated.
In 30 cases, trichoscopy confirmed the suspicion of head (24 cases) or pubic (6 cases) lice, whereas in 12 cases it allowed for a final diagnosis of seborrheic dermatitis (5 cases), hair casts (3 cases), trichobacteriosis (2 cases), white piedra (1 case), and trichorrhexis nodosa (1 case), by showing different types of pseudonits.
Hair examination using trichoscopy in routine clinical practice may provide useful information for the correct diagnosis, ranging from common head and pubic lice infestations to rarer shaft abnormalities. Differentiating pseudonits from nits is essential to make the correct diagnosis in order to prevent unnecessary treatment, anxiety, and/or embarrassment.
本研究旨在描述假性虱卵的毛发镜特征，并评估毛发镜在其鉴别诊断中的作用。
对那些疑似头部或阴部感染虱子且接受了10倍放大偏振光毛发镜检查以进行更准确诊断的患者进行了一项回顾性研究。评估了42例患者（28例男性/14例女性，平均年龄：34.5岁，范围：7 - 59岁）。
在30例病例中，毛发镜检查证实了对头部（24例）或阴部（6例）虱子感染的怀疑，而在12例病例中，通过显示不同类型的假性虱卵，最终诊断为脂溢性皮炎（5例）、毛鞘（3例）、毛干癣（2例）、白癣（1例）和结节性脆发症（1例）。
在常规临床实践中使用毛发镜检查毛发可为正确诊断提供有用信息，范围从常见的头部和阴部虱子感染到较罕见的发干异常。区分假性虱卵和虱卵对于做出正确诊断至关重要，以避免不必要的治疗、焦虑和/或尴尬。
