TABLE 3.

New (2021) FIGO staging for carcinoma of the vulva

Stage	Description
I	Tumor confined to the vulva
	IA	Tumor size ≤2 cm and stromal invasion ≤1 mm a
	IB	Tumor size >2 cm or stromal invasion >1 mm a
II	Tumor of any size with extension to lower one‐third of the urethra, lower one‐third of the vagina, lower one‐third of the anus with negative nodes
III	Tumor of any size with extension to upper part of adjacent perineal structures, or with any number of nonfixed, nonulcerated lymph node
	IIIA	Tumor of any size with disease extension to upper two‐thirds of the urethra, upper two‐thirds of the vagina, bladder mucosa, rectal mucosa, or regional lymph node metastases ≤5 mm
	IIIB	Regional b lymph node metastases >5 mm
	IIIC	Regional b lymph node metastases with extracapsular spread
IV	Tumor of any size fixed to bone, or fixed, ulcerated lymph node metastases, or distant metastases
	IVA	Disease fixed to pelvic bone, or fixed or ulcerated regional b lymph node metastases
	IVB	Distant metastases

^a Depth of invasion is measured from the basement membrane of the deepest, adjacent, dysplastic, tumor‐free rete ridge (or nearest dysplastic rete peg) to the deepest point of invasion. ¹⁰ , ¹¹

^b Regional refers to inguinal and femoral lymph nodes.