Fig. 4From: Small putative NANOG, SOX2, and SSEA-4-positive stem cells resembling very small embryonic-like stem cells in sections of ovarian tissue in patients with ovarian cancerHighly abundant “chambers” containing small, round cells (arrows) or clusters of cells (asterisks) in ovarian tissue. They were present in borderline ovarian cancer (a-c) and high-grade serous ovarian carcinoma (d-h) tissue. In a proportion of “chambers” the small, round cells were NANOG-positive and were stained brown. (Light microscope: a-c, magnifications 200x or 1000X; inverted microscope: d-h, magnifications 40x and 100x). Legend: brown-NANOG-positivity, blue-nuclei after HE staining. Red Bar: 100 μm for a-d and 50 μm for e-h Back to article page