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Definition / general | Clinical images | Gross description | Microscopic (histologic) description | Microscopic (histologic) imagesCite this page: Hale C Nevus sebaceus of Jadassohn. PathologyOutlines.com website. https://www.pathologyoutlines.com/topic/skintumornonmelanocyticnevussebaceus.html. Accessed March 5th, 2021.
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
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