title: Dermoscopic findings in radiation-induced alopecia after angioembolization.
abstract: 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 angioembolization share characteristic dermoscopy findings with alopecia areata. They may be misdiagnosed if a precise history is not obtained.
authors.affiliation: Department of Dermatology and Cutaneous Biology Research Institute, Yonsei University College of Medicine, Seoul, Korea.
authors.forename: Suhyun
authors.initials: S
authors.lastname: Cho
authors.forename: Min Ju
authors.initials: MJ
authors.lastname: Choi
authors.forename: Jung Soo
authors.initials: JS
authors.lastname: Lee
authors.forename: Zhenlong
authors.initials: Z
authors.lastname: Zheng
authors.forename: Do Young
authors.initials: DY
authors.lastname: Kim
mesh_terms: D000328:Adult; D000368:Aged; D000506:Alopecia Areata / Q000209:etiology* / Q000473:pathology; D001706:Biopsy; D002533:Cerebral Angiography / Q000009:adverse effects / Q000379:methods; D046169:Dermoscopy; D003937:Diagnosis, Differential; D004621:Embolization, Therapeutic; D057510:Endovascular Procedures / Q000379:methods*; D005260:Female; D005471:Fluoroscopy / Q000009:adverse effects*; D005500:Follow-Up Studies; D006197:Hair / Q000473:pathology* / Q000528:radiation effects; D006801:Humans; D002532:Intracranial Aneurysm / Q000000981:diagnostic imaging / Q000601:surgery*; D008297:Male; D008875:Middle Aged; D011832:Radiation Injuries / Q000150:complications* / Q000175:diagnosis; D012189:Retrospective Studies