Perifollicular Fibrosis and Inflammation in Androgenetic Alopecia and Seborrheic Dermatitis: Diagnostic Challenges in Differentiation from Fibrosing Alopecia in a Pattern Distribution
July 2026
in “
Anais Brasileiros de Dermatologia
”
androgenetic alopecia seborrheic dermatitis fibrosing alopecia in a pattern distribution perifollicular fibrosis vellus follicle terminal follicle anagen hair follicular miniaturization basal vacuolization eccrine duct dilatation polytrichia perifollicular inflammation lichenoid patterns Demodex spp. AGA SD FAPD
Studysummary This study reported that both AGA and SD in Caucasian male patients showed overlapping histopathological features with FAPD, particularly perifollicular fibrosis and inflammation, complicating diagnosis.
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