Lichen amyloidosis is a rare, chronic pruritic disorder characterized by amyloid deposition in the skin without evidence of visceral involvement. Clinically, lichen amyloidosis demonstrates discrete, intensely pruritic, hyperkeratotic papules that may coalesce into plaques, mainly located on the legs. Different treatment modalities including topical and intralesional corticosteroids, topical dimethyl sulfoxide, ultraviolet B, oral psoralen plus ultraviolet A, retinoids and dermabrasion have been described, but the results are generally disappointing. There are paucity of reports of liquid nitrogen cryosurgery as a treatment option in the management of lichen amyloidosis in the literature. In this article, we report a case of lichen amyloidosis, with pruritic hyperkeratotic papules on the left shin of 7 years' duration, successfully treated with cryosurgery.
Cryosurgery, lichen amyloidosis, treatment