How is alopecia areata diagnosed histologically?

Updated: Aug 06, 2020
  • Author: Chantal Bolduc, MD, FRCPC; Chief Editor: Dirk M Elston, MD  more...
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A histologic diagnosis of alopecia areata can be made when characteristic features are present. Horizontal sections usually are preferred to vertical sections because they allow examination of multiple hair follicles at different levels.

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