CLINICAL PRESENTATION A 42-year-old man presented with a 5-year history of an asymptomatic slow-growing papule on the left scapular region. The physical examination revealed a well-defined, 1.2-cm diameter, firm, domeshaped papule with a white-pinkish center, peripheral small papules with a pearly appearance, and a hyperpigmented outer rim (Fig 1). The initial clinical impression suggested basa...