New Insights into Lichen Planus Pigmentosus Associated with Cicatricial Alopecia.

Lichen planus pigmentosus is a rare variant of classic lichen planus that most commonly affects Fitzpatrick skin phototype III to VI.1,2 The coexistence of lichen planus pigmentosus and frontal fibrosing alopecia (FFA) was first described by Dlova.3,4 In this work we studied lichen planus pigmentosus in female patients with cicatricial alopecia and defined clinical, dermoscopic and histopathological features related to this diagnosis.