Polarized transilluminating dermoscopy: Bedside trichoscopic diagnosis of trichothiodystrophy

Yul W. Yang, Kevin Yarbrough, Mario Mitkov, Daniela Russi, Harper N. Price, David L. Swanson

Research output: Contribution to journalArticle

6 Scopus citations


Trichothiodystrophy is a rare autosomal recessive disorder resulting in a broad range of systemic abnormalities. Polarizing microscopy of the hair reveals the pathognomic “tiger tail” of alternating light and dark bands, but the need for a microscope prevents rapid bedside diagnosis. We describe a new technique for the bedside diagnosis of trichothiodystrophy using a handheld polarizing dermatoscope, precluding the need for microscopic examination.

Original languageEnglish (US)
Pages (from-to)147-149
Number of pages3
JournalPediatric Dermatology
Issue number1
StatePublished - Jan 1 2018



  • dermoscopy
  • trichoscopy
  • trichothiodystrophy

ASJC Scopus subject areas

  • Pediatrics, Perinatology, and Child Health
  • Dermatology

Cite this

Yang, Y. W., Yarbrough, K., Mitkov, M., Russi, D., Price, H. N., & Swanson, D. L. (2018). Polarized transilluminating dermoscopy: Bedside trichoscopic diagnosis of trichothiodystrophy. Pediatric Dermatology, 35(1), 147-149. https://doi.org/10.1111/pde.13290