Iwasaki K, Mihara M, Nishiura S, Shimao S
Department of Dermatology, Tottori University, Faculty of Medicine, Yonago, Japan.
J Dermatol. 1991 Feb;18(2):86-91. doi: 10.1111/j.1346-8138.1991.tb03048.x.
A 40-year-old woman who had used nylon towels in the bath for about 10 years noticed hyperpigmentation on the prominent regions over the bones of the trunk and extremities. She also developed lichenoid papules with itching on her back. Histologically, both the pigmented and the papular lesions had amyloid deposits beneath the epidermis. In this case it is presumed that the papular lesions with amyloid (lichen amyloidosus) developed initially from friction melanosis which became macular pigmented lesion (macular amyloidosis). The etiologic factor of these sequential pathologic changes is considered to be repeated scrubbing with nylon towels.
一名40岁女性，在洗澡时使用尼龙毛巾约10年，她注意到躯干和四肢骨骼突出部位出现色素沉着。她的背部还出现了伴有瘙痒的苔藓样丘疹。组织学检查显示，色素沉着和丘疹性病变在表皮下均有淀粉样蛋白沉积。在这种情况下，推测伴有淀粉样蛋白的丘疹性病变（苔藓样淀粉样变）最初由摩擦性黑变病发展而来，后者进而变成斑状色素沉着性病变（斑状淀粉样变）。这些相继出现的病理变化的病因被认为是用尼龙毛巾反复擦洗。
