ICD-11 definition : A chronic recalcitrant form of lichen planus often localized to the lower legs and
ankles and characterized by plaques of markedly thickened skin. It is often extremely
pruritic. It can leave permanent pigmentation and scarring.;
A chronic recalcitrant form of lichen planus often localized to the lower legs and
ankles and characterized by plaques of markedly thickened skin. It is often extremely
pruritic. It can leave permanent pigmentation and scarring.