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Article
October 1996

A Dinstinctive Annular Facial Plaque

Author Affiliations

Wayne State University School of Medicine, Detroit, Mich

Arch Dermatol. 1996;132(10):1241-1242. doi:10.1001/archderm.1996.03890340105018
Abstract

REPORT OF A CASE  A 41-year-old black woman presented with a 3-year history of a plaque on her chin. This asymptomatic lesion developed in an area of scarring that had resulted from grease splattering while the patient was cooking. There is no family history of similar lesions.Physical examination revealed an oval, violaceous, 1-cm, annular plaque with a depressed center and an elevated indurated rim studded with tiny, white milia on the chin (Figure 1 and Figure 2). A biopsy specimen was obtained from the rim of the lesion (Figure 3 and Figure 4).What is your diagnosis?

DIAGNOSIS:  Desmoplastic trichoepithelioma.

HISTOPATHOLOGIC FINDINGS AND CLINICAL COURSE  On hematoxylin-eosin—stained sections (Figures 3 and 4), focal irregular thickening and elongation of rete ridges were seen in the center of the specimen. The dermis in these areas showed several masses and cords of epithelial cells in a desmoplastic stroma.

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