STAGE I

IA

IB

Tumor confined to the vulva

Lesions ≤2 cm in size, confined to the vulva or perineum and with stromal invasion ≤1.0 mm*, no nodal metastasis

Lesions >2 cm in size or with stromal invasion >1.0 mm*, confined to the vulva or perineum, with negative nodes

STAGE II

STAGE III

Tumor of any size with or without extension to adjacent perineal structures (1/3 lower urethra, 1/3 lower vagina, anus) with positive inguino-femoral lymph nodes

IIIA   (i)

 (ii)

IIIB   (i)

(ii)

IIIC

With 1 lymph node metastasis (≥5 mm), or

1–2 lymph node metastasis(es) (<5 mm)

With 2 or more lymph node metastases (≥5 mm), or

3 or more lymph node metastases (<5 mm)

With positive nodes with extra-capsular spread

STAGE IV

Tumor invades other regional (2/3 upper urethra, 2/3 upper vagina), or distant structures

IVA

(i)           
           

(ii)         

IVB

Tumor invades any of the following:

upper urethral and/or vaginal mucosa, bladder mucosa, rectal mucosa, or fixed to pelvic bone, or

fixed or ulcerated inguino-femoral lymph nodes

Any distant metastasis including pelvic lymph nodes