is a congenital, hairless thick lesion that typically occurs on the face or scalp. Such nevi are classified as epidermal nevi and can be present at birth, or early childhood.
Basal cell carcinoma can arise in sebaceous nevi, usually in adulthood. However, the rate of such malignancies is now known to be less than had been estimated. For this reason, prophylactic excision is no longer recommended.
More information ― English
Nevus sebaceus or sebaceous nevus (also known as an "organoid nevus") is a congenital, hairless plaque that typically occurs on the face or scalp. Such nevi are classified as epidermal nevi and can be present at birth, or early childhood, and affect males and females of all races equally.
At birth, it is observed as alopecia with a yellow patch. With age, the lesion gradually thickens.
It mainly occurs on the scalp, but can also occur on the face.
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