Concentric polycyclic regrowth pattern in alopecia areata

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 ta...

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Bibliographic Details
Published in:International journal of trichology 2016-01, Vol.8 (1), p.35-37
Main Authors: Delorenze, Lilian, Gavazzoni-Dias, Maria, Teixeira, Marcelo, Aide, Marcia
Format: Article
Language:English
Subjects:
Alopecia
Care and treatment
Case Report
Case studies
Diagnosis
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Summary: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.
ISSN:0974-7753
0974-9241
DOI:10.4103/0974-7753.179397