What is scalp LP?

AKA Lichen Planopilaris. • Follicular, violaceous erythema and acuminate keratotic plugs surrounding the zone of alopecia • The plaques are multifocal and occur most frequently on the vertex; other hairy areas can also be involved • Follicular and perifollicular, purple, scaly pruritic papules • Atrophic scarring alopecia can appear several weeks after the disappearance of the papules! • Pseudopelade