A. E-cadherin, IHC, diffuse expression pattern, low grade endometrial carcinoma, ×100; B. Nuclear and cytoplasmic expression of HIF-1α in an endometriosis focus, ×100; C. Strong nuclear expression of HIF-1α in high grade endometrioid carcinoma, combined with endometriosis, strong perinecrotic expression in the tumor and weak diffuse expression in the endometriosis focus, ×40; D. Heterogeneous expression pattern of HIF-1α in clear cell variant ovarian carcinoma in the nucleus and cytoplasm of tumor cells, ×100; E. IHC expression of Ki67 - 75% proliferative index in moderately differentiated endometrial carcinoma, ×100; F. Cytoplasmic and membrane expression of SMA in endometrioid variant ovarian carcinoma, ×100.