Dermoscopic Findings in Radiation-Induced Alopecia after Angioembolization

作者：Cho Suhyun; Choi Min Ju; Lee Jung Soo; Zheng Zhenlong; Kim Do Young^*

来源：Dermatology, 2014, 229(2): 141-145.

DOI：10.1159/000362810

• Dermoscopy
• Radiation
• Alopecia
• Angioennbolization

Background: Cases of non-scarring alopecia after endovascular brain surgery have been reported, but dermoscopic findings of these lesions have rarely been published. Objective: To report the dermoscopic findings for alopecic skin lesions that developed after radiation exposure during angioembolization. Methods: Dermoscopic examination was used to evaluate alopecic skin lesions in 10 patients who presented with post-angioembolization alopecia. Results: The male to female ratio was 1:4, mean age 55.0 +/- 12.3 years and mean duration to lesion development 3.4 +/- 2.5 weeks. The rectangular-shaped lesions mostly occurred at the occiput and temple areas. Both yellow and black dots were the predominant dermoscopic findings in 60% (6/10) of patients, followed by short vellus hair (50%), peripilar sign (20%), broken hair (10%), coiled hair (10%) and white dots (10%). Conclusions: Alopecic skin lesions induced by radiation exposure during angioennbolization share characteristic dermoscopy findings with alopecia areata. They may be misdiagnosed if a precise history is not obtained.

• 出版日期2014