{"id":1466,"date":"2025-09-19T13:51:37","date_gmt":"2025-09-19T10:51:37","guid":{"rendered":"https:\/\/wiki.voka.io\/glossary\/hyperplasie\/"},"modified":"2025-10-10T10:02:19","modified_gmt":"2025-10-10T07:02:19","slug":"hyperplasie","status":"publish","type":"glossary_item","link":"https:\/\/wiki.voka.io\/fr\/glossaire\/hyperplasie\/","title":{"rendered":"Hyperplasie"},"content":{"rendered":"\n<p>L&rsquo;hyperplasie est une augmentation du volume d&rsquo;un tissu ou d&rsquo;un organe due \u00e0 une \u00e9l\u00e9vation du nombre de leurs \u00e9l\u00e9ments structurels (cellules) par une n\u00e9oformation excessive.<\/p>\n\n<p>Ce processus est une r\u00e9action adaptative de l&rsquo;organisme \u00e0 divers stimuli, mais, contrairement \u00e0 la croissance tumorale, il est contr\u00f4l\u00e9 et cesse apr\u00e8s l&rsquo;\u00e9limination de la cause qui l&rsquo;a provoqu\u00e9. L&rsquo;hyperplasie n&rsquo;est possible que dans les tissus dont les cellules sont capables de se diviser.<\/p>\n\n<h2 class=\"wp-block-heading\" id=\"h-&#x44D;&#x442;&#x438;&#x43E;&#x43B;&#x43E;&#x433;&#x438;&#x44F;-&#x438;-&#x43F;&#x430;&#x442;&#x43E;&#x444;&#x438;&#x437;&#x438;&#x43E;&#x43B;&#x43E;&#x433;&#x438;&#x44F;\"><strong>\u00c9tiologie et physiopathologie<\/strong><\/h2>\n\n<p>En fonction de la cause et de la signification biologique, on distingue l&rsquo;hyperplasie physiologique et l&rsquo;hyperplasie pathologique.<\/p>\n\n<ul class=\"wp-block-list\">\n<li><strong>Hyperplasie physiologique.<\/strong> Il s\u2019agit d\u2019un processus adaptatif normal. Par exemple, l\u2019hyperplasie hormonale de l\u2019\u00e9pith\u00e9lium des glandes mammaires pendant la grossesse ou l\u2019hyperplasie compensatrice du foie apr\u00e8s sa r\u00e9section partielle. <\/li>\n\n\n\n<li><strong>Hyperplasie pathologique.<\/strong> Elle r\u00e9sulte d\u2019une stimulation excessive ou inad\u00e9quate, le plus souvent hormonale. Ce type d\u2019hyperplasie perturbe le fonctionnement de l\u2019organe et peut cr\u00e9er un terrain propice au d\u00e9veloppement de tumeurs malignes. <\/li>\n<\/ul>\n\n<h2 class=\"wp-block-heading\" id=\"h-&#x43A;&#x43B;&#x438;&#x43D;&#x438;&#x447;&#x435;&#x441;&#x43A;&#x43E;&#x435;-&#x437;&#x43D;&#x430;&#x447;&#x435;&#x43D;&#x438;&#x435;\"><strong>Signification clinique<\/strong><\/h2>\n\n<p>Les exemples cliniques les plus fr\u00e9quents d&rsquo;hyperplasie pathologique sont l&rsquo;hyperplasie b\u00e9nigne de la prostate, qui provoque des probl\u00e8mes urinaires chez les hommes, et l&rsquo;hyperplasie de l&rsquo;endom\u00e8tre chez les femmes, qui peut entra\u00eener des saignements ut\u00e9rins.<\/p>\n\n<p>L&rsquo;importance clinique de l&rsquo;hyperplasie pathologique r\u00e9side dans le fait que, bien que non canc\u00e9reuse, elle peut \u00eatre un \u00e9tat pr\u00e9canc\u00e9reux. Un processus prolong\u00e9 de division cellulaire anormale augmente le risque de mutations conduisant \u00e0 une transformation maligne.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>L&rsquo;hyperplasie est une augmentation du volume d&rsquo;un tissu ou d&rsquo;un organe due \u00e0 une \u00e9l\u00e9vation du nombre de leurs \u00e9l\u00e9ments structurels (cellules) par une n\u00e9oformation excessive.<\/p>\n","protected":false},"featured_media":0,"template":"","class_list":["post-1466","glossary_item","type-glossary_item","status-publish","hentry"],"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>Hyperplasie : d\u00e9finition m\u00e9dicale et description | Voka Wiki<\/title>\n<meta name=\"description\" content=\"L&#039;hyperplasie est une augmentation du volume d&#039;un tissu ou d&#039;un organe due \u00e0 une \u00e9l\u00e9vation du nombre de leurs 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