🎗️ Vulvar Cancer FIGO 2021 Stage
Assign the FIGO 2021 vulvar cancer stage from tumour size/invasion depth, local spread, inguinofemoral nodes and fixation/distant disease. Instant, browser-side.
Clinical takeaway
FIGO 2021 aligned vulvar nodal-metastasis size definitions with the cervical system and subdivided stage III into A/B/C.
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When to use
Staging and management direction for vulvar carcinoma under the FIGO 2021 system.
How it works
I confined to vulva (IA ≤ 2 cm and ≤ 1 mm invasion / IB > 2 cm or > 1 mm, nodes negative); II lower 1/3 urethra/vagina/anus; III upper 2/3 structures or nodes (IIIA ≤ 5 mm or upper 2/3, IIIB > 5 mm, IIIC extracapsular); IVA fixation/fixed-ulcerated nodes, IVB distant.
Key points
- FIGO 2021 aligned vulvar nodal-metastasis size definitions with the cervical system and subdivided stage III into A/B/C.
- IA (invasion ≤ 1 mm) carries a very low nodal-metastasis risk and generally needs no groin node assessment.
- Sentinel-node biopsy is standard for eligible IB+ unifocal tumours with clinically negative groins.
- Positive margins or nodes drive adjuvant (chemo)radiation to the groins/pelvis.
References
Decision support for licensed clinicians only; not a substitute for clinical judgement, diagnosis or local protocols.
Worked calculation
The values below come from this tool's own example placeholders and are computed server-side with the formula shown on this page, so the arithmetic can be checked quickly. It demonstrates how to substitute values only — it is not clinical advice and not a real case.
| Primary lesion (when confined to vulva/perineum) | IA — ≤ 2 cm and stromal invasion ≤ 1 mm |
|---|---|
| Local spread | None |
| Inguinofemoral nodes | None |
| Fixation / distant | None |
→FIGO stageStage IA
- FIGO 2021 stage：Stage IA (≤ 2 cm and invasion ≤ 1 mm (nodes negative))
- Management direction：IA (invasion ≤ 1 mm): wide local excision, generally no inguinal node assessment needed (very low nodal metastasis risk)
- Notes：The 2021 nodal metastasis definitions align with cervical cancer; stage III is subdivided A/B/C (≤ 5 mm / > 5 mm / extracapsular); IVA includes fixation to pelvic bone or fixed/ulcerated nodes; invasion-depth definitions have been updated
| Primary lesion (when confined to vulva/perineum) | IB — > 2 cm or invasion > 1 mm |
|---|---|
| Local spread | Upper 2/3 urethra/vagina, bladder/rectal mucosa (→ IIIA) |
| Inguinofemoral nodes | Fixed or ulcerated (→ IVA) |
| Fixation / distant | Distant metastasis (→ IVB) |
→FIGO stageStage IVB
- FIGO 2021 stage：Stage IVB (distant metastasis)
- Management direction：Inguinal node-positive or locally advanced: surgery + inguinal-pelvic radiation ± concurrent chemotherapy (cisplatin); definitive chemoradiation if unresectable; IVB systemic therapy ± palliation
- Notes：The 2021 nodal metastasis definitions align with cervical cancer; stage III is subdivided A/B/C (≤ 5 mm / > 5 mm / extracapsular); IVA includes fixation to pelvic bone or fixed/ulcerated nodes; invasion-depth definitions have been updated
Frequently asked questions
- What is Vulvar Cancer FIGO 2021 Stage?
- Assign the FIGO 2021 vulvar cancer stage from tumour size/invasion depth, local spread, inguinofemoral nodes and fixation/distant disease. Instant, browser-side.
- How is Vulvar Cancer FIGO 2021 Stage calculated? What is the core formula?
- I confined to vulva (IA ≤ 2 cm and ≤ 1 mm invasion / IB > 2 cm or > 1 mm, nodes negative); II lower 1/3 urethra/vagina/anus; III upper 2/3 structures or nodes (IIIA ≤ 5 mm or upper 2/3, IIIB > 5 mm, IIIC extracapsular); IVA fixation/fixed-ulcerated nodes, IVB distant.
- When is Vulvar Cancer FIGO 2021 Stage used?
- Staging and management direction for vulvar carcinoma under the FIGO 2021 system.
- What are the key clinical points for Vulvar Cancer FIGO 2021 Stage?
- FIGO 2021 aligned vulvar nodal-metastasis size definitions with the cervical system and subdivided stage III into A/B/C. IA (invasion ≤ 1 mm) carries a very low nodal-metastasis risk and generally needs no groin node assessment. Sentinel-node biopsy is standard for eligible IB+ unifocal tumours with clinically negative groins. Positive margins or nodes drive adjuvant (chemo)radiation to the groins/pelvis.
- What are the limits and cautions when using Vulvar Cancer FIGO 2021 Stage?
- For licensed clinicians and clinical researchers. Interpret results with history, investigations and local protocols; not a diagnosis or prescription, and not a substitute for multidisciplinary decision-making or local guidelines.
- How is Vulvar Cancer FIGO 2021 Stage calculated in practice? Can you show a worked example?
- Inputs: Primary lesion (when confined to vulva/perineum) IA — ≤ 2 cm and stromal invasion ≤ 1 mm, Local spread None, Inguinofemoral nodes None, Fixation / distant None → Result: FIGO stage Stage IA（FIGO 2021 stage: Stage IA (≤ 2 cm and invasion ≤ 1 mm (nodes negative)), Management direction: IA (invasion ≤ 1 mm): wide local excision, generally no inguinal node assessment needed (very low nodal metastasis risk), Notes: The 2021 nodal metastasis definitions align with cervical cancer; stage III is subdivided A/B/C (≤ 5 mm / > 5 mm / extracapsular); IVA includes fixation to pelvic bone or fixed/ulcerated nodes; invasion-depth definitions have been updated） Inputs: Primary lesion (when confined to vulva/perineum) IB — > 2 cm or invasion > 1 mm, Local spread Upper 2/3 urethra/vagina, bladder/rectal mucosa (→ IIIA), Inguinofemoral nodes Fixed or ulcerated (→ IVA), Fixation / distant Distant metastasis (→ IVB) → Result: FIGO stage Stage IVB（FIGO 2021 stage: Stage IVB (distant metastasis), Management direction: Inguinal node-positive or locally advanced: surgery + inguinal-pelvic radiation ± concurrent chemotherapy (cisplatin); definitive chemoradiation if unresectable; IVB systemic therapy ± palliation, Notes: The 2021 nodal metastasis definitions align with cervical cancer; stage III is subdivided A/B/C (≤ 5 mm / > 5 mm / extracapsular); IVA includes fixation to pelvic bone or fixed/ulcerated nodes; invasion-depth definitions have been updated）