A Case of Hypotrichosis Simplex of the Scalp.
- Author:
Chang Ook PARK
1
;
Se Woong OH
;
Won Soo LEE
;
Soo Chan KIM
Author Information
1. Department of Dermatology and Cutaneous Biology Research Institute, Yonsei University College of Medicine, Seoul, Korea. kimsc@yumc.yonsei.ac.kr
- Publication Type:Case Report
- Keywords:
Congenital disorder;
Hypotrichosis simplex of the scalp
- MeSH:
Biopsy;
Child;
Congenital, Hereditary, and Neonatal Diseases and Abnormalities;
Ectoderm;
Eyebrows;
Eyelashes;
Female;
Hair;
Hair Follicle;
Humans;
Hypotrichosis*;
Malocclusion;
Parturition;
Scalp*;
Skin;
Tooth
- From:Korean Journal of Dermatology
2006;44(2):212-215
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
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. Hair shaft examination did not reveal any structural abnormalities. Microscopic examination of a scalp biopsy specimen showed a reduced number of hair follicles.
