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Resident's Page: Pathology
April 1998

Pathologic Quiz Case 1

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Copyright 1998 American Medical Association. All Rights Reserved. Applicable FARS/DFARS Restrictions Apply to Government Use.1998

Arch Otolaryngol Head Neck Surg. 1998;124(4):470. doi:10.1001/archotol.124.4.468

Nevus sebaceus was first described by Jadassohn1 in 1895. It is a congenital hamartomatous lesion that is important to diagnose because of its possibility for malignant degeneration. It presents at or shortly after birth as a solitary waxy plaque and is usually yellow or brown. It is often alopecic, with sharp and irregular margins,2 and is usually located somewhere on the head and neck. Mehregan and Pinkus3 reviewed 150 cases and found that 95% were located in the head and face area. Histologically, nevus sebaceus is composed of several skin components and is therefore also classified as an organoid nevus.

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