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