Table 8  Risk stratification of endometrial cancer according to the European Society for Medical Oncology (ESMO), the European Society for Radiotherapy & Oncology (ESTRO) and the European Society of Gynaecological Oncology (ESGO) 81 ,  82 .

Risk group	Characteristics
Low risk	endometrioid endometrial cancer, G1, G2, < 50% myometrial infiltration, L0
Low-intermediate risk	endometrioid endometrial cancer, G1, G2, ≥ 50% myometrial infiltration, L0
High-intermediate risk	endometrioid endometrial cancer, G3, < 50% myometrial infiltration, L0 or L1 endometrioid endometrial cancer, G1, G2, L1, </≥ 50% myometrial infiltration
High risk	endometrioid endometrial cancer, G3, ≥ 50% myometrial infiltration, L0 or L1, FIGO/TNM stage II/T2 endometrioid endometrial cancer, FIGO/TNM stage III/T3, R0 non-endometrioid endometrial cancer (serous/clear-cell, undifferentiated, MMMT)