A case of hypotrichosis simplex of the scalp

Chang Ook Park, Se Woong Oh, Won Soo Lee, Soo Chan Kim

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We report a sporadic case of hypotrichosis simplex of the scalp, a rare genotrichosis, characterized by sparse or absent scalp hair with no structural defect of the hair shaft, in the absence of other ectodermal or systemic abnormalities. A 9-year-old girl had normal-looking hair at birth but subsequently lost the hair on her scalp after she turned 3 years of age. However, her eyebrows and eyelashes remained normal. Skin, nails and teeth were also normal except for malocclusion. No other family member had a similar hair defect. Hak shaft examination did not reveal any structural abnormalities. Microscopic examination of a scalp biopsy specimen showed a reduced number of hair follicles.

Original languageEnglish
Pages (from-to)212-215
Number of pages4
JournalKorean Journal of Dermatology
Issue number2
Publication statusPublished - 2006 Feb 1

All Science Journal Classification (ASJC) codes

  • Dermatology

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    Park, C. O., Oh, S. W., Lee, W. S., & Kim, S. C. (2006). A case of hypotrichosis simplex of the scalp. Korean Journal of Dermatology, 44(2), 212-215.