Table 1: Comparison of 1988 and 2010 surgical staging system for endometrial cancer.

Extent of tumor involvement 1988 staging 2010 staging Endometrium only 1A IA Myometrium < 1/2 IB IA Myometrium > 1/2 IC IB Cervix mucosa IIA — Cervix stroma IIB II Uterine serosa/adnexa IIIA IIIA Vagina/parametrial IIIB IIIB Positive lymph nodes pelvic IIIC IIIC1 Positive lymph nodes periaortic IIIC IIIC2 Bladder or bowel mucosa IVA IVA Distant metastases IVB IVB