NODE (groiN ultrasOunD cancEr)

Inclusion Criteria: * Women, over 18 years, with histologically confirmed SCC or adenocarcinoma of the vulva * Clinically stage I or II on medical imaging (CT scan of pelvis, abdomen, and chest), without evidence of regional or distant metastatic disease * Participant must be suitable to undergo IFL/SNB according to local clinical practice management guidelines * Signed written informed consent * Negative serum pregnancy test ≤ 30 days of surgery in pre-menopausal women and women \< 2 years after the onset of menopause * Patient lives within 40 km of a medical diagnostic imaging centre (site investigator approval required for special circumstances) Exclusion Criteria: * Women with non-invasive vulvar conditions (e.g. non-invasive non-mammary Paget's disease) * Clinical or medical imaging evidence of regional and/or distant metastatic disease * Serious concomitant systemic disorders incompatible with the study (at the discretion of the investigator) * Other prior malignancies \<5 years before inclusion, except for successfully treated keratinocyte skin cancers, or ductal carcinoma in situ * Estimated life expectancy of ≤6 months