Skin nonmelanocytic tumor

Adnexal tumors

Sebaceous glands

Nevus sebaceus of Jadassohn

Topic Completed: 1 June 2016

Minor changes: 4 January 2022

Copyright: 2002-2022,, Inc.

PubMed Search: Nevus sebaceus of Jadassohn

Christopher S. Hale, M.D.
Page views in 2021: 20,350
Page views in 2022 to date: 1,407
Cite this page: Hale C Nevus sebaceus of Jadassohn. website. Accessed January 23rd, 2022.
Definition / general
  • Often incorrectly spelled “nevus sebaceous”
  • Congenital, organoid epidermal nevus on scalp and face
  • Malformed adnexal structures, increased risk of trichoblastomas, basal cell carcinoma, squamous cell carcinoma
  • Sex hormone responsive: need prophylactic excision before puberty
Clinical images

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Nevus sebaceus

Gross description
  • Yellow, greasy-appearing
  • “Cobblestone” texture
  • Hairless
Microscopic (histologic) description
  • Hamartoma composed of large sebaceous glands, heterotopic apocrine glands, defective hair follicles, acanthosis and epithelial papillomatosis
Microscopic (histologic) images

Contributed by Sara C. Shalin, M.D., Ph.D.

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Nevus sebaceus of Jadassohn

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