Thirty cases of lichen amyloidosus were found in a skin clinic during one year. The peak incidence occurred in patients between 40 and 60 years of age. Most cases had long durations, ranging from 5 to 20 years. The extensor surfaces of the limbs were most commonly involved. No evidence of systemic involvement was found.
Wong C. Lichen AmyloidosusA Relatively Common Skin Disorder in Taiwan. Arch Dermatol. 1974;110(3):438-440. doi:10.1001/archderm.1974.01630090072018