Vulvar Cancer FIGO 2021 Stage — free guideline decision tool
Assign the FIGO 2021 vulvar cancer stage from tumour size/invasion depth, local spread, inguinofemoral nodes and fixation/distant disease. Instant, browser-side.
Open guideline tool →Guideline-based
Implements the decision logic from published clinical guidelines.
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No installation. Enter the patient's values and get a guideline recommendation instantly.
Data stays local
Nothing is uploaded. Results are for licensed clinicians only.
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
Common 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）
Run Vulvar Cancer FIGO 2021 Stage now
Assign the FIGO 2021 vulvar cancer stage from tumour size/invasion depth, local spread, inguinofemoral nodes and fixation/distant disease. Instant, browser-side.
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