case_images: PMC2990339_01
case_images: The high grade UES of the ovary is composed of dedifferentiated round and oval to spindled cells. The nuclei are polymorphous; vesicular with coarse chromatin and large nucleoli; the cytoplasmata are scant. Mitotic figures are readily identified (H&E, x400).
case_images: PRI2010-608519.001.jpg
case_images: PMC2990339_01_PRI2010-608519.001.jpg
case_images: fig1
case_images: Their nuclei were polymorphous vesicular with coarse chromatin and large nucleoli (Figure 1).
case_images: Areas with smaller and more monotonous cells are observed focally (H&E, x400).
case_images: PRI2010-608519.002.jpg
case_images: PMC2990339_01_PRI2010-608519.002.jpg
case_images: fig2
case_images: There were transitions to areas with rather monotonous cells (Figure 2).
case_images: Endometrium-like glands corresponding to ovarian endometriosis were surrounded by broad fibrous stroma with macrophages (x100).
case_images: PRI2010-608519.003.jpg
case_images: PMC2990339_01_PRI2010-608519.003.jpg
case_images: fig3
case_images: Adjacent to the tumor tissue endometrium-like glands corresponding to ovarian endometriosis were found, surrounded by broad fibrous stroma with macrophages; there was no condensation of tumor cells around endometriotic glands "periglandular collaring" or polypoid intraluminal projections by the sarcoma (Figure 3). 
case_images: Tumor cells of high grade ovarian UES show focal strong immunostaining for CD10 (x400).
case_images: PRI2010-608519.004.jpg
case_images: PMC2990339_01_PRI2010-608519.004.jpg
case_images: fig4
case_images: Immunohistochemically, tumor cells showed diffuse strong reactivity for vimentin and patchy strong staining for CD10 in about 50% of cells (Figure 4); there was no staining of tumor cells for AE1/AE3, desmin, S-100, LCA, CD20, c-kit, and CD31.