A Case of Macular Amyloidosis due to Nylon Towel.
- Author:
Hyung Jun SIM
1
;
Sung Hee KIM
;
Ki Seung DOH
;
Min Soo JANG
;
Kee Suck SUH
;
Sang Tae KIM
Author Information
1. Department of Dermatology, College of Medicine, Kosin University, Busan, Korea. ksderm98@unitel.co.kr
- Publication Type:Case Report
- Keywords:
Amyloidosis;
Macular;
Nylon towel
- MeSH:
Male;
Humans
- From:Korean Journal of Dermatology
2004;42(1):119-121
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
Amyloidosis is a disorder of protein metabolism characterized by the extracellular deposition of abnormal protein fibrils. We report a case of macular amyloidosis due to nylon towel on his back. A 61-year-old male presented with asymptomatic hyperpigmented macules on the scapulae for 6 years. He had a habit of scrubbing his back for many years with a rough nylon towel while taking a bath. The histologic examination revealed liquefaction degeneration and homogenous eosinophilic deposition in the papillary dermis. In Congo red, amyloid material stained positively and in anti-keratin antibody staining. He had neither clinical nor laboratory evidence of systemic amyloidosis. A diagnosis of friction amyloidosis was made on histological and immunohistopathological findings.
