Figure 3

The cyst and stromal cells. The cyst was lined by cuboidal columnar epithelium, with low-grade atypia of the epithelial cells ((a) H&E staining, ×200). The columnar and cuboidal epithelium covered an ovarian-like hypercellular stroma ((b) H&E staining, ×100). This stroma was immunoreactive for estrogen and progesterone receptors ((c) estrogen receptor staining, ×200; (d) progesterone receptor staining, ×200).