Dermatitis neglecta (unwashed dermatosis) was first described by Poskitt et al in 1995. They reported 3 cases of pigmented hyperkeratotic plaques on various sites, and these plaques were the result of avoiding washing the affected areas. All of the lesions were rapidly resolved with normal washing by gently wiping with an alcohol swab.
We herein report on a case of dermatitis neglecta on the umbilicus, and this resolved after cleaning the lesions with H2O2 and a saline gauze swab during the skin biopsy. This is the first reported case to provide the histologic characteristics of dermatitis neglecta.
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