FIGO Staging for Endometrial Cancer: 1988         see AJCC Stage here


Stage IA G1, G2, G3 Tumor limited to endometrium
Stage IB G1, G2, G3 Invasion to less than one half of the myometrium
Stage IC G1, G2, G3 Invasion to more than one half of the myometrium

Stage IIA G1, G2, G3 Endocervical glandular involvement only
Stage IIB G1, G2, G3 Cervical stromal invasion

Stage IIIA G1, G2, G3 Tumor invades serosa and/or adnexa, and/or positive peritoneal cytology
Stage IIIB G1, G2, G3 Vaginal metastases
Stage IIIC G1, G2, G3 Metastases to pelvic and/or paraaortic lymph nodes

Stage IVA G2, G3 Tumor invasion of bladder and/or bowel mucosa
Stage IVB Distant metastases including intraabdominal and/or inguinal lymph nodes

Histopathology - Degree of Differentiation

Cases of carcinoma of the corpus should be classified (or graded) according to the degree of histologic differentiation, as follows:

G1 = 5% or less of a nonsquamous or nonmorular solid growth pattern
G2 = 6% to 50% of a nonsquamous or nonmorular solid growth pattern
G3 = more than 50% of a nonsquamous or nonmorular solid growth pattern