BH19 De Novo Lichen Planopilaris After Hairline-Lowering Surgery

June 2026 in “ British Journal of Dermatology ”

Kevin Ferrao, Nicola Clayton, Leila Asfour

lichen planopilaris scarring alopecia hairline-lowering surgery Koebner phenomenon immune responses

A 24-year-old woman developed lichen planopilaris (LPP), a type of scarring alopecia, after undergoing hairline-lowering surgery (HLS) for cosmetic reasons. Despite having no prior history of hair disorders, she experienced acute hair shedding and patchy hair loss post-surgery. A biopsy confirmed LPP, and treatment stabilized her condition. This case is the first reported instance of LPP following HLS, suggesting that surgical trauma may trigger LPP in predisposed individuals through mechanisms like the Koebner phenomenon and immune responses. The incidence and risk factors for LPP after HLS remain unknown.

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