MARY S.STONEMDSOONBAHRAMIMDCARRIE ANN R.CUSACKMDSENAIT W.DYSONMDMOLLY A.HINSHAWMDVINCENTLIUMD
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An 83-year-old man with no significant medical history attended our institution for evaluation. On examination, a solitary well-demarcated 1.1 × 2.2-cm, thin, pink plaque was identified on the lower back, consisting of focal brown pigmentation at the inferior border, dark-brown pigment scattered throughout the lateral border, and a red papule at the superior border (Figure 1). Dermoscopic evaluation revealed an absent central pigment network, heavily pigmented inferior border, and flecks of brown-gray globules at the lateral border. An excisional biopsy specimen was obtained and sent for histologic examination (Figure 2 and Figure 3).
Wickless SC, McNulty M, Lichon VC. Focally Pigmented Pink Plaque on the Back—Quiz Case. Arch Dermatol. 2010;146(7):789-794. doi:10.1001/archdermatol.2010.153-a