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- Title
Alopecia areata: alterations in the hair growth cycle and correlation with the follicular pathology.
- Authors
Messenger, A. G.; Slater, D. N.; Bleehen, S. S.
- Abstract
A histopathological study was performed in 17 patients with alopecia areata to elucidate the changes in hair cycle dynamics. The findings confirm the view that the initial event in alopecia areata is the premature entry of anagen follicles into telogen, although some follicles survive for a time in a dystrophic anagen state. However, after re-entry into anagen takes place, growth appears to be halted in anagen III rather than anagen IV, as has previously been suggested. Follicles then return prematurely to telogen and these truncated cycles are repeated until the disease activity subsides. A new pathogenic hypothesis is presented which relates alterations in hair cycle dynamics to pathological changes within the anagen follicle and also provides an explanation for the formation of exclamation mark hairs and the non-destructive nature of the disease.
- Subjects
ALOPECIA areata; HAIR follicles; HAIR diseases; BALDNESS; PATHOLOGY; DERMATOLOGY; MEDICINE
- Publication
British Journal of Dermatology, 1986, Vol 114, Issue 3, p337
- ISSN
0007-0963
- Publication type
Article
- DOI
10.1111/j.1365-2133.1986.tb02825.x