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  • Title: Lichenoid skin lesions as a sign of beta 2-microglobulin-induced amyloidosis in a long-term haemodialysis patient.
    Author: Sato KC, Kumakiri M, Koizumi H, Ando M, Ohkawara A, Fujioka Y, Kon T.
    Journal: Br J Dermatol; 1993 Jun; 128(6):686-9. PubMed ID: 8338753.
    Abstract:
    We report a case of beta 2-microglobulin-induced amyloidosis. The patient was a 40-year-old man suffering from non-amyloid nephropathy, who had been treated by haemodialysis for 20 years. Lichenoid skin lesions, consisting of groups of pin-head-sized shiny papules, were present on the arms and trunk. On histological examination, amyloid deposits were present, principally in the dermal papillae, but also around the sweat ducts and hair follicles. The amyloid displayed potassium-permanganate-resistant Congo red affinity, and green birefringence under polarized light. Immunohistochemically, beta 2-microglobulin was demonstrated in the lesions, confirming that they were a manifestation of beta 2-microglobulin-associated amyloidosis. Skin lesions of this type have not been reported previously in beta 2-microglobulin-associated amyloidosis.
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