Skin nonmelanocytic tumor

Adnexal tumors

Sebaceous glands

Nevus sebaceus of Jadassohn



Topic Completed: 1 June 2016

Minor changes: 4 January 2022

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PubMed Search: Nevus sebaceus of Jadassohn

Christopher S. Hale, M.D.
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Cite this page: Hale C Nevus sebaceus of Jadassohn. PathologyOutlines.com website. https://www.pathologyoutlines.com/topic/skintumornonmelanocyticnevussebaceus.html. 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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