Tumor is confined to the uterine corpus but does not involve the uterine serosa

No or <50% myometrial invasion

Myometrial invasion ≥50%

Tumor invades cervical stroma but does not extend beyond the uterus (endocervicalglandular involvement only should be considered as stage I and no longer stage II)

Tumor involves the uterine serosa, adnexae, vagina, or retroperitoneal lymph nodes

Involvement of the uterine serosa, and/or the adnexae

Vaginal and /or parametrial involvement

Involvement of the retroperitoneal lymph nodes

Positive pelvic nodes

Positive para-aortic lymph nodes with or without positive pelvic lymph nodes

Tumor involves the rectal or bladder mucosa and/or distant organs

Involvement of the mucosa of the rectum or bladder

Intra-abdominal or extra-abdominal metastasis (including inguinal lymph nodes)