What is the malignant potential of a nevus sebaceus of Jadassohn?

Updated: Jan 30, 2020
  • Author: Ginard I Henry, MD; Chief Editor: Gregory Gary Caputy, MD, PhD, FICS  more...
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Answer

Answer

While this lesion often is included in tumors of the skin adnexum, it is actually an epithelial nevus. Nevus sebaceus of Jadassohn, or verrucous epidermal nevi (some consider a variant), is a hamartomatous lesion expressing elements of sebaceous and apocrine glands, defective hair follicles, acanthosis, and papillomatosis. It is a congenital lesion, usually present on the scalp and face. The lesion tends to enlarge with time.

A nevus sebaceus of Jadassohn is shown in the image below.

Macular benign skin lesion: Nevus sebaceous of Jad Macular benign skin lesion: Nevus sebaceous of Jadassohn.

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