Honeybrook Adam, Crossing Tascha, Bernstein Eric, Bloom Jason, Woodward Julie
b Main Line Center for Laser Surgery , Ardmore , PA , USA.
a Duke University Hospital, Division of Head and Neck Surgery & Communication Sciences, Department of Surgery , Durham , NC , USA.
J Cosmet Laser Ther. 2018 Jun;20(3):179-183. doi: 10.1080/14764172.2017.1383614. Epub 2017 Dec 5.
One underreported, rare side effect of laser hair removal is paradoxical hypertrichosis. It is largely unknown what the long-term outcomes are of patients who develop this complication. We report a 21-year-old, Fitzpatrick II, male patient, who had patchy areas of dark hair affecting various body areas. An Alexandrite 755 nm laser was used to address the desired areas at energies between 20 and 22 J/cm at 10-12-week intervals over a course of seven treatments. After three treatments, the patient noted a significant increase in the density and length of hairs involving the back, shoulders, neck, and upper arms. The patient was followed on a biannual basis, without further epilatory intervention. After 10 years, the areas of paradoxical hair growth were sparser compared to immediate post-treatment but remained denser compared to pre-treatment. This case illustrates improvement in the condition over time without intervention. Further studies are needed to determine the etiopathogenesis of this phenomenon.
激光脱毛一种未被充分报道的罕见副作用是矛盾性多毛症。对于出现这种并发症的患者，其长期预后情况很大程度上尚不清楚。我们报告一名21岁、菲茨帕特里克皮肤分型为II型的男性患者，其身体不同部位有片状深色毛发。使用翠绿宝石755纳米激光，以20至22焦耳/平方厘米的能量，每隔10至12周对所需部位进行一次治疗，共进行了七次治疗。三次治疗后，患者注意到背部、肩部、颈部和上臂的毛发密度和长度显著增加。对该患者每半年进行一次随访，未进行进一步的脱毛干预。10年后，与治疗后即刻相比，矛盾性毛发生长区域变稀疏，但与治疗前相比仍更浓密。该病例说明该病情未经干预会随时间改善。需要进一步研究以确定这种现象的发病机制。
