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Verrucous seborrheic keratosis and verrucous epidermal nevus share several findings histopathologic, among them laminate and basket-woven orthokeratosis, an epidermis thinned in some foci and thickened in others, the presence sometimes of “horn pseudocysts,” varying degrees of epidermal hyperpigmentation, papillomatosis, and some dermal papillae that are pointed and others that are rounded. Despite the changes histopathologic […]