• 1. Department of Dermatology & Venerology, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, P. R. China;
  • 2. Department of Dermatology, Chengdu Second People’s Hospital, Chengdu, Sichuan 610017, P. R. China;
ZhangYizhi, Email: yizhi5202@sina.com
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Objective To analyze the contact allergens of melanosis. Methods Fifty-six patients confirmed with melanosis between June 2010 and October 2013 received patch test and BICOM test, and the results were analyzed statistically and clinical data of the included patients were retrospectively analyzed. Results Of the 56 patients, 50 patch tests and 40 BICOM tests were positive. The top three chemical allergic resources in patch test of these patients were nickel sulfate (33.9%), aluminum (21.4%), and potassium dichromate (16.1%). The positive rates of male patients with aluminum, rubber compounds and cobalt chloride were significantly higher than those of females. The positive rate of female patients with nickel sulfate was significantly higher than that of males. The differences were all significant (P<0.05) . Conclusion Nickel sulfate, aluminum and potassium dichromate may be the main allergens of melanosis.

Citation: HuaXia, ZhouHui, ZhangYizhi. Analysis of Allergens of Melanosis in 56 Cases. West China Medical Journal, 2016, 31(5): 880-884. doi: 10.7507/1002-0179.201600239 Copy

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