Acanthosis nigricans form of epidermal nevus and review of the literature: Case report; [Epidermal nevusun akantozis nigrikans formu ve literatürün gözden geçirilmesi]
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Date
2011
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Abstract
Dermatological examination of a 12 year old girl with the complaint of brownish-black spots and itching on left axilla for approximately one year revealed hyperpigmented papules and plaques on the left axillary region. On dermoscopic examination of the lesions network structure associated with typical epidermal pigmentation was seen. Histopathologic examination of biopsy specimen taken from the lesions showed superficial hyperkeratosis, papillomatosis and acanthosis in the epidermis, mild perivascular chronic inflammatory cell infiltration in the dermis. The case, resembling acanthosis nigricans, linear verrucous epidermal nevus and zosteriform lichen planus at first sight, was diagnosed as acanthosis nigricans form of epidermal nevus with clinical, dermoscopic and histopathologic findings. The patient was treated with topical retinoic acid and showed significant improvement in the follow ups. Herein, with respect of our interesting case due to the atypical clinical appearence and rarely definition in the literature, clinical features, differential diagnosis, dermoscopic and histopathological findings of acanthosis nigricans form of epidermal nevus will be discussed. Copyright © 2011 by Türkiye Klinikleri.