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June 2007

Asymptomatic Cutaneous Lip Plaque—Quiz Case

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Arch Dermatol. 2007;143(6):791-796. doi:10.1001/archderm.143.6.791-a

A 68-year-old white woman presented with a 4-month history of an asymptomatic, slowly enlarging plaque on the cutaneous surface of the right lateral aspect of her lower lip. She denied any history of trauma, discharge, or ulceration. She also denied any personal or family history of skin cancer or other significant dermatologic or medical problems.

Physical examination revealed a 6-mm, nontender, round, skin-colored to yellowish plaque with a papular surface (Figure 1). Palpation revealed a firm, nodular, deep dermal mass without a punctum; firm pressure did not expel any contents. A punch biopsy specimen was obtained for microscopic examination (Figure 2 and Figure 3).

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