Two Cases of Dedifferentiated Endometrioid Carcinoma: Case Presentation and Brief Review of the Literature

Figure 2

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.

(a)

(b)

(c)

(d)