Microcystic Stromal Tumor with Predominant Bizarre Nuclei of Ovary in a Pregnant Woman

Figure 3

Immunohistochemical stains of MST. (a) Diffuse, strong nuclear and cytoplasmic expression of beta-catenin (20×). (b) Diffuse, strong cytoplasmic positivity for CD10 (20×). (c) Patchy positivity for WT-1 (20×). (d) EMA negativity in MST (arrow). Note the positive staining in mucinous cystadenoma (lower) (1.25×).

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(b)

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