A Case of Lichen Planopilaris on the Occiput / 대한피부과학회지

ABSTRACT

Lichen planopilaris is a follicular variant of lichen planus. When it appears on the scalp and is accompanied with hair loss, it is classified into a subtype of cicatrical alopecia. And lichen planopilaris can be classified into classic lichen planopilaris, frontal fibrosing alopecia, Graham-Little syndrome. A 63-year-old man presented with a 3-year history of hair loss on the area of occipital skin and 3-week history of pruritic, confluent, purple-colored, flat-topped papules on the same area with decreased follicular ostium. Histopathological findings showed both characteristics of the cicatricial alopecia and those of lichen planus; Loss of the hair follicles, atrophy of the sebaceous gland and sweat gland, and bandlike inflammatory infiltration on the upper dermis, especially on the perifollicular and interfollicular area.