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Subpatterns of Seborrheic Keratoses

Arch Dermatol. 2004;140:260.

	Since this article does not have an abstract, we have provided the first 150 words of the full text and any section headings.

THE LESIONS SHOWN ARE FROM THE LEFT anterior lower leg of a 52-year-old white man (Figure 1), the back of a 51-year-old white woman (Figure 2), and the left upper abdomen of a 51-year-old white woman (Figure 3) (size bar, 5 mm). All 3 of these lesions reveal a similar pattern. They are well demarcated from the surrounding skin and the bulk of the lesion has a foggy brown quality punctuated by crisp brown-black circular areas (comedolike openings) and less well-defined white dots (milialike cysts). This pattern is common for seborrheic keratoses. The underlying disease process resulting in these lesions remains unknown. However, there clearly is a loss of normal keratinocyte growth regulation. In lesions with this pattern melanin also appears to be accumulated.

Figure appears in full text version. Figure 1.

Figure appears in full text version. Figure 2.

Figure appears in full text version. Figure 3.

Editor's Note: The skINsight section is a forum for the presentation of dermatologic images. . . . [Full Text of this Article]