What is sebaceous adenoma (SA)?

Updated: Jan 30, 2020
  • Author: Ginard I Henry, MD; Chief Editor: Gregory Gary Caputy, MD, PhD, FICS  more...
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Sebaceous adenoma (SA), also known as sebaceous epithelioma (sebaceoma) [22] and sebocrine adenoma, is a nodular and lobulated lesion that belongs to a family of benign complex skin adnexal tumors with varying degrees of sebaceous differentiation. Sebaceous adenomas occur in areas in which sebaceous glands predominate; they occur primarily in the head and neck regions but can be present in any hair-bearing region of the body. They are usually small (2-10 mm in diameter), smooth surface lesions that occur usually as macules but also can have papular formations. They commonly are tan to reddish-brown to yellowish in color and occasionally contain central speckles. Infrequently, they can occur on the trunk or legs and have a polypoid appearance. Basal cell carcinoma is challenging to differentiate from sebaceous adenoma, and diagnostic biopsy is often required.

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