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Table 37.1. FIGO staging of endometrial cancer

Table 37.1. FIGO staging of endometrial cancer.
Stagea   Definition
IA Grade 1,2,3 Carcinoma confined to the endometrium
IB Grade 1,2,3 Invasion of less than one-half myometrial thickness
IC Grade 1,2,3 Invasion of equal to or more than one-half myometrial thickness
IIA Grade 1,2,3 Spread to endocervical glands
IIB Grade 1,2,3 Invasion of cervical stroma
IIIA Grade 1,2,3 Invasion of serosa and/or adnexa and/or positive peritoneal cytology
IIIB Grade 1,2,3 Vaginal metastases
IIIC Grade 1,2,3 Pelvic and/or para-aortic lymph node involvement
IVA Grade 1,2,3 Invasion of bowel and/or bladder mucosa
IVB Grade 1,2,3 Distant metastases including spread to abdominal viscera or inguinal lymph nodes
FIGO, International Federation of Gynecology and Obstetrics.
a Grade 1, 5% of less of a nonsquamous or nonmorular solid growth pattern; grade 2, 6%-50% of a nonsquamous or nonmorular solid growth pattern; grade 3, more than 50% of a nonsquamous or nonmorular solid growth pattern.