Concentric polycyclic regrowth pattern in alopecia areata | Zendy

LilianMathias Delorenze | Zendy; MariaFernanada Reis Gavazzoni-Dias | Zendy; MarceloS Teixeira | Zendy; MarciaKalil Aide | Zendy

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Concentric polycyclic regrowth pattern in alopecia areata

Author(s) -

LilianMathias Delorenze,

MariaFernanada Reis Gavazzoni-Dias,

MarceloS Teixeira,

MarciaKalil Aide

Publication year - 2016

Publication title -

international journal of trichology

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.494

H-Index - 22

eISSN - 0974-9241

pISSN - 0974-7753

DOI - 10.4103/0974-7753.179397

Subject(s) - alopecia areata , hair loss , scalp , dermatology , concentric , medicine , mathematics , geometry

Alopecia areata (AA) is a common form of autoimmune nonscarring hair loss of scalp and/or body. Atypical hair regrowth in AA is considered a rare phenomenon. It includes atypical pattern of hair growth (sudden graying, perinevoid alopecia, Renbok phenomenon, castling phenomenon, and concentric or targetoid regrowth) and atypical dark color hair regrowth. We report a case of AA that resulted in a concentric targetoid hair regrowth and discuss the possible related theories regarding the significance of this phenomenon.

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