case_images: PMC6176286_01
case_images: Case 1. (a) On gross examination a polypoid mass filled the endometrial cavity. (b, c) The tumor comprised well-differentiated endometrioid carcinoma and UC whose component represented about 80% of the whole neoplasm (hematoxylin and eosin [HE]).
case_images: CRIOG2018-7624785.001.jpg
case_images: PMC6176286_01_CRIOG2018-7624785.001.jpg
case_images: fig1
case_images: The well-differentiated endometrioid carcinoma was confirmed on the surface of the endometrial polyp, and the coexisting UC showed a diffuse proliferation of atypical cells (Figure 1).
case_images: Case 1. (a) The tumor was composed of well-differentiated endometrioid carcinoma and UC with a sharp border (HE). ((b) ER, (c) PR) Differentiated components were strongly positive for ER and PR, whereas undifferentiated areas were not stained. (d) Pancytokeratin (AE1/AE3) was diffusely expressed in the well-differentiated carcinoma component and focally expressed in the UC component.
case_images: CRIOG2018-7624785.002.jpg
case_images: PMC6176286_01_CRIOG2018-7624785.002.jpg
case_images: fig2
case_images: Estrogen receptor (ER) and progesterone receptor (PR) were well expressed only in the differentiated carcinoma component (Figure 2).
case_images: PMC6176286_02
case_images: Case 2. (a) The tumor comprised moderately DEC and UC. (b) Pancytokeratin (AE1/AE3) was diffusely expressed in the well-differentiated carcinoma component and focally expressed in the UC component.
case_images: CRIOG2018-7624785.003.jpg
case_images: PMC6176286_02_CRIOG2018-7624785.003.jpg
case_images: fig3
case_images: Pancytokeratin (AE1/AE3) was diffusely expressed in the differentiated carcinoma component and focally expressed in the UC component (Figure 3).