Evaluation of New Diagnostic Tool Using Fluorescence to Detect High-grade Vulvar Intraepithelial Neoplasia

"Metvixia is applied with a spatula, in a thick layer, to clinically visible lesions and all over the vulva. After applying the cream, the area will be covered with a bandage which should remain in place for 3 hours. After 3 hours of application, the bandage and the cream will be carefully removed. The application area will be cleaned and then immediately exposed to a continuous spectrum of light at a wavelength of 405 nm by a xenon lamp.~The most fluorescent areas will be identified. Then in white light, the practitioner will perform at least two biopsies under non-topical local anesthesia in the area of application of Metvixia®: one in the fluorescent area and one in the non-fluorescent area.~If there is no fluorescent labeling, two samples will be taken from two different non-fluorescent areas. In the event that all the zone is fluorescent , two samples will be taken from two different fluorescent zones."