Direct immunofluorescent technique in six cases of lichen amyloidosus failed to detect binding of immunoglobulins IgG, IgA, and IgM and complement C′3 in amyloid deposits. According to these results, the immune pathogenesis could be ruled out in this type of condition.
Stringa SG, Bianchi C, Casala A, Bianchi O. Immunoglobulins and Complement C'3 in Lichen AmyloidosusImmunofluorescent Study. Arch Dermatol. 1972;105(4):541-543. doi:10.1001/archderm.1972.01620070013005