Fig. 1
Oct4 immunohistochemical expression in gastric carcinoma cases: a Low Oct4 expression in well-differentiated gastric carcinoma (× 200) [inset: a higher magnification × 400]. b Low Oct4 expression in moderately differentiated gastric carcinoma (× 200) [inset: a higher magnification × 400]. c High Oct4 expression in poorly differentiated gastric carcinoma (× 200). d High Oct4 expression in mucinous carcinoma (× 400). e High Oct4 expression in signet ring carcinoma (× 400)