Líquen aureus "algesiogênico"

a case is described of lichen aureus in a 23 year old female with a 2-year history of painful, purpuric, rust-coloured to tan, lichenous lesion on forearm. a biopsy specimen demonstrated a dense lymphohistiocytic infiltrate in the upper dermis, with extravasation of red cells. the "algesiogenic" lichen aureus is a very rare dermatosis.