| Stage I | Tumor confined to corpus uteri Ia – tumor extending to <50% of myometrial depth Ib – tumor extending to >50% of myometrial depth |
| Stage II | Tumor invades cervical stroma, but does not extend beyond the uterus |
| Stage III | Local and/or regional spread of the tumor IIIa – tumor invades serosa of corpus uteri and/or adnexa IIIb – vaginal and/or parametrial involvement IIIc – metastases to pelvic and/or para-aortic lymph nodes IIIc1 – positive pelvic nodes IIIc2 – positive para-aortic lymph nodes with or without positive pelvic lymph nodes |
| Stage IV | Tumor invades bladder and/or bowel mucosa, and/or distant metastases IVa- tumor invades bladder and/or bowel mucosa (biopsy proven) IVb – distant metastases, including intra-abdominal metastases and/or inguinal lymph nodes |
FIGO staging of endometrial carcinoma
