Abstract
Endometrial carcinoma (EC) has traditionally been divided into 2groups: type I, considered to have a good prognosis and to be oestrogen-dependent and type II, with a poorer prognosis and oestrogen-independent. The aim of the study is to analyse the risk factors associated with high-grade EC. Material and MethodsRetrospective multicentre cohort study in 3Spanish reference hospitals: Hospital Universitario Miguel Servet in Zaragoza, Hospital Clínico San Carlos in Madrid and Hospital Virgen del Rocío in Seville. We studied the presence of risk factors associated with high grade EC: G3 endometrioid (G3EC), serous carcinoma (SC), clear cell carcinoma (CCC) and malignant mixed mesodermal tumours (MMMT). Differences between subtypes were analysed depending on whether the EC was type I or II. A total of 373 cases of high-grade EC were included, of which 135 were G3EC or type I and 238 were type II (96 SC, 64 CCC and 78 MMMT). ResultsDiabetes, obesity, nulliparity and use of hormonal replacement therapy showed no significant difference between subtypes. MMMT was less frequently associated with hypertension and conversely it showed greater association with the use of tamoxifen. ConclusionsRisk factors associated with high-grade EC are similar in type I and II.
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