Endometrial cancer is the most common gynecologic cancer in high income countries [1]. It is divided into Type I and Type II from a histopathological as well as a molecular perspective. Type II endometrial cancer comprises some grade-3 endometrial cancers, undifferentiated endometrial cancer, uterine serous cancer, clear cell carcinoma, and carcinosarcoma. Although these tumors are less common than low grade endometrial cancer, they are associated with a higher stage at diagnosis and with most recurrences and deaths [2].