Hormonal Receptor Expression and Survival in Young Thai Endometrial Cancer Patients

According to recent World Health Organization data, the incidence of endometrial cancer (EMC) varies in different parts of the world (Ferlay et al., 2010). It is the most common female genital tract malignancy in the more developed regions, with an estimated incidence of 12.9 per 100,000 women. In the less developed regions where cervical cancer is more common, EMC has an estimated incidence of 5.9 per 100,000 women in general and 4.3 per 100,000 women in Thailand in particular. Although the median age at the diagnosis of EMC is 63 years with the peak incidence reported between 55 and 64 years, a certain number of patients develop EMC at a younger age (Altekruse et al., 2010). Despite the fact that age references for a young EMC patient varies widely from <40 to <50 years, some different characteristic features were commonly observed in these patients in comparison to those in older age groups. For example, younger EMC