Volume : 3, Issue : 3, March - 2014

Two Cases of Lichen Amyloidosis � A Rare Entity

Dr. Satish Arakeri, Dr. Priyadarshini D

Abstract :

 Hyperpigmentation is the most common cosmetic skin complaint and distressing problem. Case report: First case: A 35 year male patient presented with macular lesions over extremities since 2 years. Second case: A 70 year male patient presented with multiple macular and papular rashes over back region since 3 years. Skin biopsy showed irregular acanthosis and hyperkeratosis. Papillary dermis showed eosinophilic amorphous material of amyloid . Congo red showed salmon pink color of amyloid. Polarising microscope showed apple green birefringence. Discussion: Lichen amyloidosis is a form of primary cutaneous amyloidosis in which amyloid is deposited in previously normal skin without any evidence of visceral involvement. Clinically it presents as pruritic small discrete hyperkeratotic hyperpigmented usually on the extensor surface of the lower limbs. It is treated by topical and intralesional corticosteroids, triamcinolone, dimethyl sulfoxide, keratolytic agents and dermaasion