{"id":6217,"date":"2026-02-26T16:53:44","date_gmt":"2026-02-26T13:53:44","guid":{"rendered":"https:\/\/wiki.voka.io\/glossary\/colposcopie\/"},"modified":"2026-04-16T13:56:39","modified_gmt":"2026-04-16T10:56:39","slug":"colposcopie","status":"publish","type":"glossary_item","link":"https:\/\/wiki.voka.io\/fr\/glossary\/colposcopie\/","title":{"rendered":"Colposcopie"},"content":{"rendered":"\n

Colposcopie (du grec kolpos<\/em> \u2014 vagin, skopeo<\/em> \u2014 observer) est une m\u00e9thode de diagnostic instrumentale visuelle hautement informative, des pathologies du col de l’ut\u00e9rus, du vagin et de la vulve, r\u00e9alis\u00e9e \u00e0 l’aide d’un microscope binoculaire (colposcope) avec illuminateur.<\/p>\n\n

\u00c9tiologie et physiopathologie<\/strong><\/h2>\n\n

La m\u00e9thode repose sur l’\u00e9tude de la r\u00e9action de l’\u00e9pith\u00e9lium et du motif vasculaire sous un agrandissement multiple (de 7 \u00e0 30 fois) lors de la r\u00e9alisation de tests diagnostiques (colposcopie d\u00e9velopp\u00e9e) :<\/p>\n\n

    \n
  1. Test \u00e0 l’acide ac\u00e9tique \u00e0 3 % :<\/strong> L’acide provoque la coagulation des prot\u00e9ines intracellulaires et un spasme vasculaire transitoire. L’\u00e9pith\u00e9lium pathologique (dysplasie, atteinte par le VPH) \u00e0 haute densit\u00e9 nucl\u00e9aire blanchit plus intens\u00e9ment et plus longtemps que la normale (effet aceto-blanc de l’\u00e9pith\u00e9lium).<\/li>\n\n\n\n
  2. Test de Schiller (avec solution de Lugol) :<\/strong> L’\u00e9pith\u00e9lium plat mature riche en glycog\u00e8ne se colore en brun fonc\u00e9 avec de l’iode. Les cellules pathologiques modifi\u00e9es (canc\u00e9reuses, dysplasiques) sont pauvres en glycog\u00e8ne et restent non color\u00e9es (iode-n\u00e9gatif).<\/li>\n<\/ol>\n\n

    Importance clinique<\/strong><\/h2>\n\n

    La colposcopie est une partie int\u00e9grante du d\u00e9pistage du cancer du col de l’ut\u00e9rus (triade : cytologie + test VPH + colposcopie). Elle permet de diff\u00e9rencier les changements b\u00e9nins (ectopie, zone de transformation, kystes de Naboth) des changements suspects (leucoplasie, ponctuation, mosa\u00efque, vaisseaux atypiques). Le principal objectif de la proc\u00e9dure est la navigation pour une biopsie cibl\u00e9e de la zone la plus alt\u00e9r\u00e9e pour une v\u00e9rification histologique pr\u00e9cise du diagnostic.<\/p>\n\n

    <\/p>\n","protected":false},"excerpt":{"rendered":"

    Colposcopie (du grec kolpos<\/em> \u2014 vagin, skopeo<\/em> \u2014 observer) est une m\u00e9thode de diagnostic instrumentale visuelle hautement informative, des pathologies du col de l’ut\u00e9rus, du vagin et de la vulve, r\u00e9alis\u00e9e \u00e0 l’aide d’un microscope binoculaire (colposcope) avec illuminateur.<\/p>\n","protected":false},"featured_media":0,"template":"","class_list":["post-6217","glossary_item","type-glossary_item","status-publish","hentry"],"acf":[],"yoast_head":"\nColposcopie : d\u00e9finition m\u00e9dicale et description | Voka Wiki<\/title>\n<meta name=\"description\" content=\"Colposcopie (du grec kolpos \u2014 vagin, skopeo \u2014 observer) est une m\u00e9thode de diagnostic instrumentale visuelle hautement informative, des pathologies du col de l'ut\u00e9rus, du vagin et de la vulve, r\u00e9alis\u00e9e \u00e0 l'aide d'un microscope binoculaire (colposcope) avec illuminateur.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, 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