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Off-Center Fold
December 2007

Soft Papules and Nodules on the Buttock—Quiz Case

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Arch Dermatol. 2007;143(12):1583-1588. doi:10.1001/archderm.143.12.1583-d

A 24-year-old healthy African American woman presented with a 10-year history of “growths” on her right buttock that had started as a single lump over the sacrum. Over time, new lesions developed and increased in size, but after 5 years, the masses stopped growing and changing. There was no family history of similar lesions.

Physical examination revealed multiple soft, sessile, skin-colored to hyperpigmented grouped papules and nodules coalescing into plaques over a 16 × 10-cm area of the sacrum and right buttock (Figure 1). The plaques had a wrinkled, cerebriform surface. Two nodules were excised for histologic evaluation (Figure 2 and Figure 3).

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