What is the role of biopsy in the diagnosis of alopecia areata?

Updated: Aug 06, 2020
  • Author: Chantal Bolduc, MD, FRCPC; Chief Editor: Dirk M Elston, MD  more...
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Diagnosis usually can be made on clinical grounds; a scalp biopsy seldom is needed, but it can be helpful when the clinical diagnosis is less certain.

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