{"id":3493,"date":"2026-02-26T16:53:18","date_gmt":"2026-02-26T13:53:18","guid":{"rendered":"https:\/\/wiki.voka.io\/glossary\/necrose-caseeuse\/"},"modified":"2026-02-26T16:53:21","modified_gmt":"2026-02-26T13:53:21","slug":"necrose-caseeuse","status":"publish","type":"glossary_item","link":"https:\/\/wiki.voka.io\/fr\/glossaire\/necrose-caseeuse\/","title":{"rendered":"N\u00e9crose cas\u00e9euse"},"content":{"rendered":"\n<p>La n\u00e9crose cas\u00e9euse (du latin <em>caseus<\/em> &#8211; fromage) est un type sp\u00e9cifique de n\u00e9crose de coagulation des tissus, caract\u00e9ristique de l&rsquo;inflammation granulomateuse chronique, principalement d&rsquo;\u00e9tiologie tuberculeuse. <\/p>\n\n<p>Au cours de ce processus, le tissu mort se transforme en une masse s\u00e8che, friable, sans structure et de couleur blanc jaun\u00e2tre.<\/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>La n\u00e9crose se d\u00e9veloppe au centre du granulome tuberculeux. Le m\u00e9canisme de sa formation est associ\u00e9 \u00e0 une r\u00e9action d&rsquo;hypersensibilit\u00e9 retard\u00e9e (type IV). La fraction lipidique toxique de la paroi cellulaire mycobact\u00e9rienne et les enzymes lysosomales des macrophages activ\u00e9s provoquent la destruction compl\u00e8te du tissu.    <\/p>\n\n<p>Histologiquement, la n\u00e9crose cas\u00e9euse est un d\u00e9tritus amorphe \u00e9osinophile avec une perte compl\u00e8te de la structure cellulaire, des noyaux et de l&rsquo;architecture du tissu (\u00ab\u00a0cimeti\u00e8re de cellules mortes\u00a0\u00bb). Un puits de cellules \u00e9pith\u00e9lio\u00efdes et de cellules g\u00e9antes multinucl\u00e9\u00e9es de Pirogov-Langhans se forme autour de la zone de n\u00e9crose. <\/p>\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>La v\u00e9rification histologique de la n\u00e9crose cas\u00e9euse dans une biopsie de l&rsquo;endom\u00e8tre, des trompes de Fallope ou des ovaires est un crit\u00e8re absolu et indiscutable pour le diagnostic de la <strong>tuberculose g\u00e9nitale<\/strong>. Cela permet de diff\u00e9rencier de mani\u00e8re fiable la tuberculose d&rsquo;autres maladies granulomateuses telles que la sarco\u00efdose (o\u00f9 les granulomes ne sont pas cas\u00e9eux) ou la maladie de Crohn. <\/p>\n","protected":false},"excerpt":{"rendered":"<p>La n\u00e9crose cas\u00e9euse (du latin <em>caseus<\/em> &#8211; fromage) est un type sp\u00e9cifique de n\u00e9crose de coagulation des tissus, caract\u00e9ristique de l&rsquo;inflammation granulomateuse chronique, principalement d&rsquo;\u00e9tiologie tuberculeuse. <\/p>\n","protected":false},"featured_media":0,"template":"","class_list":["post-3493","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>N\u00e9crose cas\u00e9euse : d\u00e9finition m\u00e9dicale et description | Voka Wiki<\/title>\n<meta name=\"description\" content=\"La n\u00e9crose cas\u00e9euse (du latin caseus - 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