The staging of vulvar cancer is based on surgical findings.
FIGO Stage
| Description |
I
|
| Tumour confined to the vulva, no nodal metastasis
|
| IA
| Lesion < 2cm in size, confined to the vulva or perineum and with stromal invasion <1mm
|
| IB
| Lesion >2cm in size or with stromal invasion >1mm, confined to the vulva or perineum
|
II
|
| Tumour of any size with extension to adjacent perineal structures (lower third urethra, lower third vagina, anus), with negative nodes
|
III
|
| Tumour of any size with extension to upper part of adjacent perineal structures or with positive inguinofemoral nodes
|
| IIIA
| Tumour of any size with disease extension to upper two-thirds of the urethra, vagina or anus
Or regional lymph node metastases <5mm
|
| IIIB
| Regional lymph node metastases >5mm
|
| IIIC
| Regional lymph node metastases with extracapsular spread
|
IV
|
| Tumour invades other regional (upper 2/3 urethra, upper 2/3 vagina) or distant structures
|
| IVA
| Disease fixed to pelvic bone or fixed to ulcerated inguinofemoral lymph nodes
|
| IVB
| Any distant metastasis including pelvic lymph nodes
|
* The depth of invasion is defined as the measurement of the tumour from the epithelial-stromal junction of the adjacent most superficial dermal papilla to the deepest point of invasion