The spectrum of epidermal nevi: A case of verrucous epidermal nevus contiguous with nevus sebaceus

During the normal development of skin, pluripotential cells give rise to ke ratinocytes, sebaceous glands, hair follicles, apocrine glands, and eccrine glands. In epidermal nevi, these components emerge in an abnormal mixture within a circumscribed site. Many authors have categorized epidermal nevi b ased on their predominant component; however, there is often notable overla p that occurs within a single area or within contiguous areas. We report a verrucous epidermal nevus contiguous to a nevus sebaceus of Jadassohn. The categories of epidermal nevi are somewhat artificial. Our case supports the view that epidermal nevi have a spectrum of manifestations, including verr ucous epidermal nevi and nevus sebaceus of Jadassohn.