{"id":1893,"date":"2025-12-11T15:06:06","date_gmt":"2025-12-11T12:06:06","guid":{"rendered":"https:\/\/wiki.voka.io\/diseases\/uncategorized\/lampe-de-wood\/"},"modified":"2025-12-11T15:05:59","modified_gmt":"2025-12-11T12:05:59","slug":"examen-lampe-de-wood","status":"publish","type":"diseases_post","link":"https:\/\/wiki.voka.io\/fr\/maladies\/dermatologiques\/examen-lampe-de-wood\/","title":{"rendered":"Diagnostic ultraviolet de la peau par lampe de Wood : principe, indications et application"},"content":{"rendered":"<p>La lampe de Wood (Wood\u2019s lamp) est un appareil sp\u00e9cialis\u00e9 de diagnostic non invasif des maladies cutan\u00e9es, largement utilis\u00e9 pour \u00e9valuer l\u2019\u00e9tat de la peau et des cheveux. L\u2019appareil a \u00e9t\u00e9 invent\u00e9 en 1903 par le physicien Robert Wood ; son premier emploi document\u00e9 en dermatologie date de 1925, lorsqu\u2019il a \u00e9t\u00e9 recommand\u00e9 pour la d\u00e9tection des infections fongiques. <\/p>\n<figure class=\"wp-block-video\" id=\"animation-3d-diagnostic-ultraviolet-de-la-peau-par-lampe-de-wood\"><video controls><source data-src=\"https:\/\/storage.googleapis.com\/dev_wiki_voka_io_303011\/articles\/en\/dermatology\/woods-lamp-examination\/woods-lamp-examination.webm\" type=\"video\/webm\"><\/source><\/video><figcaption class=\"wp-element-caption\">Animation 3D \u2013 diagnostic ultraviolet de la peau par lampe de Wood<\/figcaption><\/figure>\n<p>\u00c0 l\u2019origine, la lampe de Wood \u00e9tait une source lumineuse \u00e9quip\u00e9e d\u2019un filtre sp\u00e9cial bloquant la lumi\u00e8re visible et ne transmettant que les ultraviolets \u00e0 ondes longues (UVA). Aujourd\u2019hui, les lampes de Wood fonctionnent avec des LED \u00e0 365 nm, offrant une densit\u00e9 de puissance bien sup\u00e9rieure aux anciens mod\u00e8les \u00e0 filtre.<\/p>\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/storage.googleapis.com\/dev_wiki_voka_io_303011\/articles\/en\/dermatology\/woods-lamp-examination\/example-of-modern-woods-lamp.webp\" alt=\"Exemple de lampe de Wood moderne \"><figcaption class=\"wp-element-caption\">Exemple de lampe de Wood moderne<\/figcaption><\/figure>\n<h2 class=\"wp-block-heading\" id=\"comment-fonctionne-la-lampe-de-wood\">Comment fonctionne la lampe de Wood?<\/h2>\n<p>Dans certaines pathologies cutan\u00e9es, l\u2019exposition aux rayonnements ultraviolets provoque le ph\u00e9nom\u00e8ne de fluorescence : certains compos\u00e9s endog\u00e8nes ou exog\u00e8nes absorbent les UVA et r\u00e9\u00e9mettent une lumi\u00e8re de longueur d\u2019onde sup\u00e9rieure. Cette r\u00e9action est particuli\u00e8rement marqu\u00e9e chez divers micro-organismes. Selon la couleur de l\u2019\u00e9mission lumineuse, le clinicien peut poser un diagnostic pr\u00e9somptif sur la nature de l\u2019atteinte, son \u00e9tendue r\u00e9elle et ses caract\u00e9ristiques.<\/p>\n<h2 class=\"wp-block-heading\" id=\"indications-et-couleurs-de-fluorescence\">Indications et couleurs de fluorescence<\/h2>\n<p>La lampe de Wood est utilis\u00e9e en dermatologie pour mettre en \u00e9vidence la fluorescence caract\u00e9ristique associ\u00e9e \u00e0 diff\u00e9rentes pathologies.<\/p>\n<figure class=\"wp-block-table table-to-cards\">\n<table class=\"has-fixed-layout\">\n<thead>\n<tr>\n<th class=\"has-text-align-center\" data-align=\"center\"><strong>L\u00e9sion<\/strong><\/th>\n<th class=\"has-text-align-center\" data-align=\"center\"><strong>Agent\/\u00c9tat responsable<\/strong><\/th>\n<th class=\"has-text-align-center\" data-align=\"center\"><strong>Fluorescence particuli\u00e8re<\/strong><\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td class=\"has-text-align-center\" data-align=\"center\"><strong>Pityriasis versicolor<\/strong><\/td>\n<td class=\"has-text-align-center\" data-align=\"center\"><em>Malassezia furfur<\/em> (champignon)<\/td>\n<td class=\"has-text-align-center\" data-align=\"center\">Jaune-vert<\/td>\n<\/tr>\n<tr>\n<td class=\"has-text-align-center\" data-align=\"center\"><strong>Microsporie, dermatophytoses<\/strong><\/td>\n<td class=\"has-text-align-center\" data-align=\"center\">Infections fongiques<\/td>\n<td class=\"has-text-align-center\" data-align=\"center\">Vert-bleut\u00e9 ou bleu\u00e2tre<\/td>\n<\/tr>\n<tr>\n<td class=\"has-text-align-center\" data-align=\"center\"><strong>\u00c9rythrasma<\/strong><\/td>\n<td class=\"has-text-align-center\" data-align=\"center\"><em>Corynebacterium minutissimum<\/em> (bact\u00e9rie)<\/td>\n<td class=\"has-text-align-center\" data-align=\"center\">Rouge corail ou rouge-orang\u00e9<\/td>\n<\/tr>\n<tr>\n<td class=\"has-text-align-center\" data-align=\"center\"><strong>Infection \u00e0 Pseudomonas<\/strong><\/td>\n<td class=\"has-text-align-center\" data-align=\"center\"><em>Pseudomonas aeruginosa<\/em> (bact\u00e9rie)<\/td>\n<td class=\"has-text-align-center\" data-align=\"center\">Verd\u00e2tre<\/td>\n<\/tr>\n<tr>\n<td class=\"has-text-align-center\" data-align=\"center\"><strong>Acn\u00e9<\/strong><\/td>\n<td class=\"has-text-align-center\" data-align=\"center\"><em>Cutibacterium acnes<\/em> (bact\u00e9rie)<\/td>\n<td class=\"has-text-align-center\" data-align=\"center\">Rouge-orang\u00e9 (dans les follicules s\u00e9bac\u00e9s)<\/td>\n<\/tr>\n<tr>\n<td class=\"has-text-align-center\" data-align=\"center\"><strong>Vitiligo<\/strong><\/td>\n<td class=\"has-text-align-center\" data-align=\"center\">Trouble de la pigmentation<\/td>\n<td class=\"has-text-align-center\" data-align=\"center\">Blanc laiteux (ou blanc-bleu tr\u00e8s lumineux)<\/td>\n<\/tr>\n<tr>\n<td class=\"has-text-align-center\" data-align=\"center\"><strong>Porphyries<\/strong><\/td>\n<td class=\"has-text-align-center\" data-align=\"center\">Accumulation de porphyrines<\/td>\n<td class=\"has-text-align-center\" data-align=\"center\">Rose-rouge (sang, urine, \u00e9mail dentaire)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/figure>\n<h3 class=\"wp-block-heading\" id=\"infections-fongiques\"><strong>Infections fongiques<\/strong><\/h3>\n<ul class=\"wp-block-list\">\n<li><strong>Pityriasis versicolor <\/strong> : fluorescence jaune-vert vif ou dor\u00e9e caract\u00e9ristique.<\/li>\n<li><strong>Microsporie <\/strong> et autres dermatophytoses : fluorescence parfois vert-bleut\u00e9 ou bleu\u00e2tre.<\/li>\n<\/ul>\n<div class=\"carousel-block\">\n<div class=\"swiper carousel-swiper carousel-swiper-block_69ef4a6439721\">\n<div class=\"swiper-wrapper\">\n<div class=\"swiper-slide\"><img decoding=\"async\" class=\"carousel-image\" src=\"https:\/\/storage.googleapis.com\/dev_wiki_voka_io_303011\/articles\/en\/dermatology\/woods-lamp-examination\/focus-of-microsporia-under-normal-lighting.webp\" alt=\"Foyer de microsporie en lumi\u00e8re ordinaire\"><span class=\"small-text-article text-main-text-color\">Foyer de microsporie en lumi\u00e8re ordinaire<\/span><\/div>\n<div class=\"swiper-slide\"><img decoding=\"async\" class=\"carousel-image\" src=\"https:\/\/storage.googleapis.com\/dev_wiki_voka_io_303011\/articles\/en\/dermatology\/woods-lamp-examination\/focus-of-microsporia-under-woods-lamp-lighting.webp\" alt=\"Foyer de microsporie sous lampe de Wood\"><span class=\"small-text-article text-main-text-color\">Foyer de microsporie sous lampe de Wood<\/span><\/div>\n<div class=\"swiper-slide\"><img decoding=\"async\" class=\"carousel-image\" src=\"https:\/\/storage.googleapis.com\/dev_wiki_voka_io_303011\/articles\/en\/dermatology\/woods-lamp-examination\/pityriasis-versicolor-under-normal-lighting.webp\" alt=\"Pityriasis versicolor en lumi\u00e8re ordinaire\"><span class=\"small-text-article text-main-text-color\">Pityriasis versicolor en lumi\u00e8re ordinaire<\/span><\/div>\n<div class=\"swiper-slide\"><img decoding=\"async\" class=\"carousel-image\" src=\"https:\/\/storage.googleapis.com\/dev_wiki_voka_io_303011\/articles\/en\/dermatology\/woods-lamp-examination\/pityriasis-versicolor-under-woods-lamp-lighting.webp\" alt=\"Pityriasis versicolor sous lampe de Wood\"><span class=\"small-text-article text-main-text-color\">Pityriasis versicolor sous lampe de Wood<\/span><\/div>\n<\/div>\n<\/div>\n<div class=\"swiper-article-carousel__controls\">\n<div class=\"swiper-article-carousel__pagination-container swiper-article-carousel__pagination-container-block_69ef4a6439721\"><\/div>\n<div class=\"swiper-article-carousel__arrows\"><button class=\"swiper__arrow swiper__arrow--prev carousel-swiper-button-prev swiper__arrow swiper__arrow--prev 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27.2505 21.6156 27.1344L15.3656 20.8844C15.2494 20.7683 15.1572 20.6304 15.0943 20.4787C15.0314 20.3269 14.999 20.1643 14.999 20C14.999 19.8357 15.0314 19.6731 15.0943 19.5213C15.1572 19.3696 15.2494 19.2317 15.3656 19.1156L21.6156 12.8656C21.7318 12.7495 21.8696 12.6574 22.0214 12.5945C22.1731 12.5317 22.3358 12.4993 22.5 12.4993C22.6643 12.4993 22.8269 12.5317 22.9786 12.5945C23.1304 12.6574 23.2682 12.7495 23.3844 12.8656C23.5005 12.9818 23.5926 13.1196 23.6555 13.2714C23.7184 13.4231 23.7507 13.5858 23.7507 13.75C23.7507 13.9142 23.7184 14.0769 23.6555 14.2286C23.5926 14.3804 23.5005 14.5182 23.3844 14.6344L18.0172 20L23.3844 25.3656Z\" fill=\"#B5C0CD\"><\/path><\/svg><\/button><button class=\"swiper__arrow swiper__arrow--next carousel-swiper-button-next swiper__arrow swiper__arrow--next carousel-swiper-button-next-block_69ef4a6439721\" tabindex=\"0\" aria-label=\"Next slide\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"40\" height=\"40\" viewbox=\"0 0 40 40\" fill=\"none\"><path d=\"M20 3.75C16.7861 3.75 13.6443 4.70305 10.972 6.48862C8.29969 8.27419 6.21689 10.8121 4.98696 13.7814C3.75704 16.7507 3.43524 20.018 4.06225 23.1702C4.68926 26.3224 6.23692 29.2179 8.50952 31.4905C10.7821 33.7631 13.6776 35.3107 16.8298 35.9378C19.982 36.5648 23.2493 36.243 26.2186 35.013C29.1879 33.7831 31.7258 31.7003 33.5114 29.028C35.297 26.3557 36.25 23.2139 36.25 20C36.2455 15.6916 34.5319 11.561 31.4855 8.51454C28.439 5.46806 24.3084 3.75455 20 3.75ZM23.3844 25.3656C23.5005 25.4818 23.5926 25.6196 23.6555 25.7714C23.7184 25.9231 23.7507 26.0858 23.7507 26.25C23.7507 26.4142 23.7184 26.5769 23.6555 26.7286C23.5926 26.8804 23.5005 27.0182 23.3844 27.1344C23.2682 27.2505 23.1304 27.3426 22.9786 27.4055C22.8269 27.4683 22.6643 27.5007 22.5 27.5007C22.3358 27.5007 22.1731 27.4683 22.0214 27.4055C21.8696 27.3426 21.7318 27.2505 21.6156 27.1344L15.3656 20.8844C15.2494 20.7683 15.1572 20.6304 15.0943 20.4787C15.0314 20.3269 14.999 20.1643 14.999 20C14.999 19.8357 15.0314 19.6731 15.0943 19.5213C15.1572 19.3696 15.2494 19.2317 15.3656 19.1156L21.6156 12.8656C21.7318 12.7495 21.8696 12.6574 22.0214 12.5945C22.1731 12.5317 22.3358 12.4993 22.5 12.4993C22.6643 12.4993 22.8269 12.5317 22.9786 12.5945C23.1304 12.6574 23.2682 12.7495 23.3844 12.8656C23.5005 12.9818 23.5926 13.1196 23.6555 13.2714C23.7184 13.4231 23.7507 13.5858 23.7507 13.75C23.7507 13.9142 23.7184 14.0769 23.6555 14.2286C23.5926 14.3804 23.5005 14.5182 23.3844 14.6344L18.0172 20L23.3844 25.3656Z\" fill=\"#B5C0CD\"><\/path><\/svg><\/button><\/div>\n<\/div>\n<\/div>\n<p><script defer>\n    document.addEventListener('DOMContentLoaded', function() {\n        const imagesCarouselSwiper = new Swiper('.carousel-swiper-block_69ef4a6439721', {\n            slidesPerView: 1,\n            spaceBetween: 20,\n            loop: true,\n            pagination: {\n                el: '.swiper-article-carousel__pagination-container-block_69ef4a6439721',\n                clickable: true,\n            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lumineuse<\/strong> avec des limites nettes.<\/li>\n<\/ul>\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/storage.googleapis.com\/dev_wiki_voka_io_303011\/articles\/en\/dermatology\/woods-lamp-examination\/vitiligo-spots-under-normal-lighting.webp\" alt=\"Taches de vitiligo en lumi\u00e8re ordinaire\"><figcaption class=\"wp-element-caption\">Taches de vitiligo en lumi\u00e8re ordinaire<\/figcaption><\/figure>\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/storage.googleapis.com\/dev_wiki_voka_io_303011\/articles\/en\/dermatology\/woods-lamp-examination\/vitiligo-spots-under-woods-lamp-lighting.webp\" alt=\"Taches de vitiligo sous lampe de Wood\"><figcaption class=\"wp-element-caption\">Taches de vitiligo sous lampe de Wood<\/figcaption><\/figure>\n<h3 class=\"wp-block-heading\" id=\"possibilites-diagnostiques-complementaires\"><strong>Possibilit\u00e9s diagnostiques compl\u00e9mentaires <\/strong><\/h3>\n<ol class=\"wp-block-list\">\n<li><strong>Porphyries: <\/strong>fluorescence rose-rouge caract\u00e9ristique.<\/li>\n<li><strong>Hyper- et hypopigmentations<\/strong> (chloasma, m\u00e9lasma) : la lampe de Wood permet de pr\u00e9ciser la profondeur du pigment (\u00e9pidermique ou dermique).<\/li>\n<li><strong>Diagnostic diff\u00e9rentiel: <\/strong> leucodermie, m\u00e9lanodermie, hyperpigmentations post-inflammatoires.<\/li>\n<li><strong>\u00c9valuation de la flore cutan\u00e9e<\/strong> et de la propret\u00e9 de la peau.<\/li>\n<\/ol>\n<h2 class=\"wp-block-heading\" id=\"technique-de-realisation-du-diagnostic\">Technique de r\u00e9alisation du diagnostic<\/h2>\n<p>La m\u00e9thode est non invasive, rapide et ne n\u00e9cessite aucune pr\u00e9paration complexe.<\/p>\n<ul class=\"wp-block-list\">\n<li><strong>Cabinet noir: <\/strong> examen r\u00e9alis\u00e9 dans une pi\u00e8ce totalement obscurcie.<\/li>\n<li><strong>Proc\u00e9dure: <\/strong> le clinicien allume la lampe et examine les zones d\u2019int\u00e9r\u00eat \u00e0 environ 20 cm pendant quelques minutes.<\/li>\n<li><strong>\u00c9valuation: <\/strong> intensit\u00e9, couleur, nettet\u00e9 des contours et autres param\u00e8tres de la fluorescence.<\/li>\n<li><strong>Conclusion : <\/strong> diagnostic pr\u00e9somptif ou d\u00e9finitif; examens compl\u00e9mentaires si n\u00e9cessaire.<\/li>\n<\/ul>\n<h3 class=\"wp-block-heading\" id=\"preparation-a-l-examen\"><strong>Pr\u00e9paration \u00e0 l\u2019examen <\/strong><\/h3>\n<ul class=\"wp-block-list\">\n<li><strong>24 heures avant : <\/strong> ne pas nettoyer <strong>la peau<\/strong> ni <strong>appliquer cr\u00e8mes,<\/strong> pommades, produits de soin ou maquillage.<\/li>\n<li><strong>1 \u00e0 2 jours avant: <\/strong> \u00e9viter sauna, hammam et solarium.<\/li>\n<\/ul>\n<div class=\"social-banner-block\">\n<div class=\"social-banner-content\">\n<p class=\"h5-title text-black\">Retrouvez d\u2019autres contenus scientifiquement exacts sur nos m\u00e9dias sociaux<\/p>\n<p><span class=\"social-banner-text text-grey\">Abonnez-vous et ne manquez pas les derni\u00e8res ressources<\/span><\/p>\n<div class=\"social-links-wrapper\"><a class=\"social-icon-link\" href=\"https:\/\/www.facebook.com\/VOKA3DAnatomyAndPathology\/\" target=\"_blank\" rel=\"nofollow noopener\"><img decoding=\"async\" src=\"https:\/\/storage.googleapis.com\/dev_wiki_voka_io_303011\/common\/Social%20Icons\/facebook.svg\" alt=\"social link\"><\/a><a class=\"social-icon-link\" href=\"https:\/\/www.instagram.com\/voka.io\/\" target=\"_blank\" rel=\"nofollow noopener\"><img decoding=\"async\" src=\"https:\/\/storage.googleapis.com\/dev_wiki_voka_io_303011\/common\/Social%20Icons\/insta.svg\" alt=\"social link\"><\/a><a class=\"social-icon-link\" href=\"https:\/\/www.linkedin.com\/company\/voka-io\/posts\/?feedView=all\" target=\"_blank\" rel=\"nofollow noopener\"><img decoding=\"async\" src=\"https:\/\/storage.googleapis.com\/dev_wiki_voka_io_303011\/common\/Social%20Icons\/linkedin.svg\" alt=\"social link\"><\/a><a class=\"social-icon-link\" href=\"https:\/\/www.youtube.com\/@vokaio\" target=\"_blank\" rel=\"nofollow noopener\"><img decoding=\"async\" src=\"https:\/\/storage.googleapis.com\/dev_wiki_voka_io_303011\/common\/Social%20Icons\/youtube.svg\" alt=\"social link\"><\/a><a class=\"social-icon-link\" href=\"https:\/\/www.pinterest.com\/voka3danatomyandpathology\/\" target=\"_blank\" rel=\"nofollow noopener\"><img decoding=\"async\" src=\"https:\/\/storage.googleapis.com\/dev_wiki_voka_io_303011\/common\/Social%20Icons\/pinterest.svg\" alt=\"social link\"><\/a><a class=\"social-icon-link\" href=\"https:\/\/www.tiktok.com\/@voka.io\" target=\"_blank\" rel=\"nofollow noopener\"><img decoding=\"async\" src=\"https:\/\/storage.googleapis.com\/dev_wiki_voka_io_303011\/common\/Social%20Icons\/tiktok.svg\" alt=\"social link\"><\/a><a class=\"social-icon-link\" href=\"https:\/\/discord.gg\/7ejUpq8DRR\" target=\"_blank\" rel=\"nofollow noopener\"><img decoding=\"async\" src=\"https:\/\/storage.googleapis.com\/dev_wiki_voka_io_303011\/common\/Social%20Icons\/discord.svg\" alt=\"social link\"><\/a><\/div>\n<\/div>\n<p><img decoding=\"async\" class=\"social-banner-image\" loading=\"lazy\" src=\"https:\/\/storage.googleapis.com\/dev_wiki_voka_io_303011\/common\/social-media-banner-mobile-image.webp\" alt=\"Banner background\"><\/div>\n<h2 class=\"wp-block-heading\" id=\"avantages-et-limites\"><strong>Avantages et limites<\/strong><\/h2>\n<h3 class=\"wp-block-heading\" id=\"avantages-de-la-lampe-de-wood\"><strong>Avantages de la lampe de Wood <\/strong><\/h3>\n<ul class=\"wp-block-list\">\n<li><strong>Rapidit\u00e9:<\/strong> quelques minutes suffisent.<\/li>\n<li><strong>Innocuit\u00e9 : <\/strong> \u00e9mission uniquement en UVA longue, sans danger lors d\u2019une utilisation br\u00e8ve.<\/li>\n<li><strong>Confort:<\/strong> totalement indolore.<\/li>\n<li><strong>Accessibilit\u00e9:<\/strong>  pr\u00e9sente dans la plupart des cabinets de dermatologie.<\/li>\n<li><strong>Visualisation<\/strong> de l\u00e9sions invisibles en lumi\u00e8re ordinaire.<\/li>\n<\/ul>\n<h3 class=\"wp-block-heading\" id=\"limites\"><strong>Limites <\/strong><\/h3>\n<ul class=\"wp-block-list\">\n<li><strong>Sensibilit\u00e9 limit\u00e9e:<\/strong>  toutes les infections fongiques ou bact\u00e9riennes ne fluorescents pas.<\/li>\n<li><strong>Facteurs externes interf\u00e9rents : <\/strong> cosm\u00e9tiques, pommades ou salet\u00e9 cutan\u00e9e peuvent fausser les r\u00e9sultats.<\/li>\n<li><strong>N\u00e9cessite une grande exp\u00e9rience clinique<\/strong> pour une interpr\u00e9tation fiable.<\/li>\n<\/ul>\n<p><strong>M\u00e9thode uniquement d\u2019appoint : <\/strong> ne remplace pas un diagnostic de laboratoire complet.<\/p>\n<div>\n<h2 class=\"faq-title h2-article\" id=\"faq\">FAQ<\/h2>\n<div class=\"faq-section\">\n<div class=\"faq-item faq-answer-hidden\">\n<div class=\"question-block\">\n<div class=\"faq-question\">\n<p class=\" text-black h5-title\">1. Comment les mycoses et le pityriasis versicolor apparaissent-ils sous lampe de Wood?<\/p>\n<\/div>\n<div class=\"faq-answer text-main-text-color main-text-medium\"><em>Le pityriasis versicolor<\/em> \u00e9met une fluorescence jaune-vert ou dor\u00e9e caract\u00e9ristique; la microsporie et certaines dermatophyties donnent une fluorescence vert-bleu ou bleu\u00e2tre.<\/div>\n<\/div>\n<div class=\"expand-button-wrapper\"><button class=\"text-accent expand-button\">+<\/button><\/div>\n<\/div>\n<div class=\"faq-item faq-answer-hidden\">\n<div class=\"question-block\">\n<div class=\"faq-question\">\n<p class=\" text-black h5-title\">2. \u00c0 quoi sert la lampe de Wood en dermatologie?<\/p>\n<\/div>\n<div class=\"faq-answer text-main-text-color main-text-medium\">Elle permet le diagnostic rapide des infections fongiques et bact\u00e9riennes (\u00e9rythrasma, acn\u00e9), ainsi que la d\u00e9termination de la profondeur des troubles pigmentaires (vitiligo, m\u00e9lasma).<\/div>\n<\/div>\n<div class=\"expand-button-wrapper\"><button class=\"text-accent expand-button\">+<\/button><\/div>\n<\/div>\n<div class=\"faq-item faq-answer-hidden\">\n<div class=\"question-block\">\n<div class=\"faq-question\">\n<p class=\" text-black h5-title\">3. Quelles sont les r\u00e8gles essentielles de pr\u00e9paration \u00e0 l\u2019examen? <\/p>\n<\/div>\n<div class=\"faq-answer text-main-text-color main-text-medium\">Ne rien appliquer sur la peau (soins, cr\u00e8mes, maquillage) dans les 24 heures pr\u00e9c\u00e9dant l\u2019examen, car ces produits peuvent alt\u00e9rer la fluorescence.<\/div>\n<\/div>\n<div class=\"expand-button-wrapper\"><button class=\"text-accent expand-button\">+<\/button><\/div>\n<\/div>\n<div class=\"faq-item faq-answer-hidden\">\n<div class=\"question-block\">\n<div class=\"faq-question\">\n<p class=\" text-black h5-title\">4. La lampe de Wood peut-elle \u00eatre nocive pour la peau ou les yeux? <\/p>\n<\/div>\n<div class=\"faq-answer text-main-text-color main-text-medium\">Les mod\u00e8les actuels ne sont pas dangereux. Elles n\u2019\u00e9mettent que des UVA longs, consid\u00e9r\u00e9s comme sans risque lors d\u2019un usage court, mais il convient d\u2019\u00e9viter l\u2019exposition directe des yeux.<\/div>\n<\/div>\n<div class=\"expand-button-wrapper\"><button class=\"text-accent expand-button\">+<\/button><\/div>\n<\/div>\n<div class=\"faq-item faq-answer-hidden\">\n<div class=\"question-block\">\n<div class=\"faq-question\">\n<p class=\" text-black h5-title\">5. La lampe de Wood permet-elle d\u2019\u00e9valuer la profondeur de la pigmentation? <\/p>\n<\/div>\n<div class=\"faq-answer text-main-text-color main-text-medium\">Oui. La lampe de Wood permet de pr\u00e9ciser la profondeur du pigment (par exemple dans le chloasma ou le m\u00e9lasma): les pigmentations \u00e9pidermiques deviennent plus contrast\u00e9es sous UVA, tandis que les pigmentations dermiques sont att\u00e9nu\u00e9es ou invisibles.<\/div>\n<\/div>\n<div class=\"expand-button-wrapper\"><button class=\"text-accent expand-button\">+<\/button><\/div>\n<\/div>\n<div class=\"faq-item faq-answer-hidden\">\n<div class=\"question-block\">\n<div class=\"faq-question\">\n<p class=\" text-black h5-title\">6. Pourquoi l\u2019examen doit-il \u00eatre r\u00e9alis\u00e9 dans l\u2019obscurit\u00e9 totale? <\/p>\n<\/div>\n<div class=\"faq-answer text-main-text-color main-text-medium\">Toute lumi\u00e8re visible masque la faible fluorescence \u00e9mise par les fluorophores cutan\u00e9s; l\u2019obscurit\u00e9 compl\u00e8te est indispensable pour une observation fiable.<\/div>\n<\/div>\n<div class=\"expand-button-wrapper\"><button class=\"text-accent expand-button\">+<\/button><\/div>\n<\/div>\n<\/div>\n<p><script type=\"application\/ld+json\">\n    {\n    \"@context\": \"https:\/\/schema.org\",\n    \"@type\": \"FAQPage\",\n    \"mainEntity\": [\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Comment les mycoses et le pityriasis versicolor apparaissent-ils sous lampe de Wood?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"<em>Le pityriasis versicolor \u00e9met une fluorescence jaune-vert ou dor\u00e9e caract\u00e9ristique; la microsporie et certaines dermatophyties donnent une fluorescence vert-bleu ou bleu\u00e2tre.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"\u00c0 quoi sert la lampe de Wood en dermatologie?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Elle permet le diagnostic rapide des infections fongiques et bact\u00e9riennes (\u00e9rythrasma, acn\u00e9), ainsi que la d\u00e9termination de la profondeur des troubles pigmentaires (vitiligo, m\u00e9lasma).\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Quelles sont les r\u00e8gles essentielles de pr\u00e9paration \u00e0 l\u2019examen? \",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Ne rien appliquer sur la peau (soins, cr\u00e8mes, maquillage) dans les 24 heures pr\u00e9c\u00e9dant l\u2019examen, car ces produits peuvent alt\u00e9rer la fluorescence.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"La lampe de Wood peut-elle \u00eatre nocive pour la peau ou les yeux? \",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Les mod\u00e8les actuels ne sont pas dangereux. Elles n\u2019\u00e9mettent que des UVA longs, consid\u00e9r\u00e9s comme sans risque lors d\u2019un usage court, mais il convient d\u2019\u00e9viter l\u2019exposition directe des yeux.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"La lampe de Wood permet-elle d\u2019\u00e9valuer la profondeur de la pigmentation? \",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Oui. La lampe de Wood permet de pr\u00e9ciser la profondeur du pigment (par exemple dans le chloasma ou le m\u00e9lasma): les pigmentations \u00e9pidermiques deviennent plus contrast\u00e9es sous UVA, tandis que les pigmentations dermiques sont att\u00e9nu\u00e9es ou invisibles.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Pourquoi l\u2019examen doit-il \u00eatre r\u00e9alis\u00e9 dans l\u2019obscurit\u00e9 totale? \",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Toute lumi\u00e8re visible masque la faible fluorescence \u00e9mise par les fluorophores cutan\u00e9s; l\u2019obscurit\u00e9 compl\u00e8te est indispensable pour une observation fiable.\"\n            }\n        }\n    ]\n}<\/script><\/div>\n<div class=\"sources-list-block sources-list-hidden\" id=\"references\">\n<div class=\"sources-list-content\">\n<div class=\"sources-list-title\">\n<p class=\"small-text-bold text-black sources-list-title-text\">R\u00e9f\u00e9rences<\/p>\n<div class=\"sources-expand-button-wrapper-mobile\">\n<div class=\"sources-expand-button\"><svg width=\"32\" height=\"32\" viewbox=\"0 0 32 32\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M8 12L16 20L24 12\" stroke=\"#8C9AAB\" stroke-width=\"2\" stroke-linecap=\"round\" stroke-linejoin=\"round\"><\/path><\/svg><\/div>\n<\/div>\n<\/div>\n<div class=\"sources-list-items\">\n<div class=\"source-item\">\n<p class=\"main-text-semibold text-black\">1.<\/p>\n<div class=\"source-item-content\">\n<p class=\"main-text-semibold text-black\"><cite>Catalogue VOKA. [Ressource \u00e9lectronique. <\/cite><\/p>\n<p><span class=\"small-text-medium text-grey\">https:\/\/catalog.voka.io\/ <\/span><\/div>\n<\/div>\n<div class=\"source-item\">\n<p class=\"main-text-semibold text-black\">2.<\/p>\n<div class=\"source-item-content\">\n<p class=\"main-text-semibold text-black\"><cite>Kimura Y, Tanemura A, Kurosaki Y, Takafuji M, Yokoi K, Kiyohara E, Arase N, Fujimoto M. Clinical Observation and Proposed Classification of Vitiliginous Patches by a Wood\u2019s Lamp.[Observation clinique et classification propos\u00e9e des plaques de vitiligo sous lampe de Wood]. J Cosmet Dermatol Sci Appl. 2020;10:204\u2013211. doi:10.4236\/jcdsa.2020.104021.<\/cite><\/p>\n<\/div>\n<\/div>\n<div class=\"source-item\">\n<p class=\"main-text-semibold text-black\">3.<\/p>\n<div class=\"source-item-content\">\n<p class=\"main-text-semibold text-black\"><cite>Guo W, Qian G, Zhang C. Alopecia from tinea capitis in an 8-year-old boy.[Alop\u00e9cie secondaire \u00e0 une teigne du cuir chevelu chez un gar\u00e7on de 8 ans]. CMAJ. 2024 Apr 22;196(15):E526.<\/cite><\/p>\n<\/div>\n<\/div>\n<div class=\"source-item\">\n<p class=\"main-text-semibold text-black\">4.<\/p>\n<div class=\"source-item-content\">\n<p class=\"main-text-semibold text-black\"><cite>Al Aboud DM, Gossman W. Wood\u2019s Light.[Lampe de Wood]. 2023 Aug 28. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2025 Jan\u2013. PMID\u00a0: 30725878.<\/cite><\/p>\n<\/div>\n<\/div>\n<div class=\"source-item\">\n<p class=\"main-text-semibold text-black\">5.<\/p>\n<div class=\"source-item-content\">\n<p class=\"main-text-semibold text-black\"><cite>Dyer\u202fJM, Foy\u202fVM. Revealing The Unseen: A Review of Wood\u2019s Lamp in Dermatology.[R\u00e9v\u00e9ler l\u2019invisible : revue de la lampe de Wood en dermatologie]. J Clin Aesthet Dermatol. 2022 Jun;15(6) : 25\u201130.<\/cite><\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"sources-expand-button-wrapper\">\n<div class=\"sources-expand-button\"><svg width=\"32\" height=\"32\" viewbox=\"0 0 32 32\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M8 12L16 20L24 12\" stroke=\"#8C9AAB\" stroke-width=\"2\" stroke-linecap=\"round\" stroke-linejoin=\"round\"><\/path><\/svg><\/div>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>La lampe de Wood (Wood\u2019s lamp) est un appareil sp\u00e9cialis\u00e9 de diagnostic non invasif des maladies cutan\u00e9es, largement utilis\u00e9 pour \u00e9valuer l\u2019\u00e9tat de la peau et des cheveux. L\u2019appareil a \u00e9t\u00e9 invent\u00e9 en 1903 par le physicien Robert Wood ; son premier emploi document\u00e9 en dermatologie date de 1925, lorsqu\u2019il a \u00e9t\u00e9 recommand\u00e9 pour la [&hellip;]<\/p>\n","protected":false},"author":10,"featured_media":0,"template":"","diseases_category":[237],"class_list":["post-1893","diseases_post","type-diseases_post","status-publish","hentry","diseases_category-dermatologiques"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v25.0 (Yoast SEO v26.5) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Diagnostic ultraviolet de la peau par lampe de Wood : principe, indications et application | Voka Wiki<\/title>\n<meta name=\"description\" content=\"Diagnostic ultraviolet de la peau par lampe de Wood : principe, indications et application. 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