Figure 3

Equivocal immunoreactivity with MSH6 identified in a skin sebaceous adenoma (a, × 200) that demonstrates immunoreactivity in lesional cells present at the periphery of the lesion and that account for <10% of the cells. Equivocal immunoreactivity with MSH6 in a primary uterine endometrioid carcinoma (b, × 400) in which most of the tumor cells lacked MSH6 expression with areas demonstrating weak nuclear MSH6 staining comprising <10% of tumor cells.