{"id":1411,"date":"2026-07-10T16:28:29","date_gmt":"2026-07-10T14:28:29","guid":{"rendered":"https:\/\/amyloidosisalliance.local\/amylose-localisee\/"},"modified":"2026-09-29T11:03:51","modified_gmt":"2026-09-29T09:03:51","slug":"amylose-localisee","status":"publish","type":"page","link":"https:\/\/www.amyloidosisalliance.org\/fr\/types-damylose\/amylose-localisee\/","title":{"rendered":"Amylose localis\u00e9e"},"content":{"rendered":"\n<nav class=\"wp-block-group aa-breadcrumb aa-events-hero__crumb is-layout-flow wp-block-group-is-layout-flow\" aria-label=\"Breadcrumb\">\n\t\n\t<div class=\"aa-inner\"><a href=\"\/\">Accueil<\/a><span class=\"aa-breadcrumb__sep\">\u203a<\/span><span class=\"aa-breadcrumb__label\">Amylose<\/span><span class=\"aa-breadcrumb__sep\">\u203a<\/span><a href=\"https:\/\/www.amyloidosisalliance.org\/fr\/types-damylose\/\">Types d\u2019amylose<\/a><span class=\"aa-breadcrumb__sep\">\u203a<\/span><a href=\"https:\/\/www.amyloidosisalliance.org\/fr\/types-damylose\/autres-types\/\">Autres types<\/a><span class=\"aa-breadcrumb__sep\">\u203a<\/span><span class=\"aa-breadcrumb__current\">Amylose localis\u00e9e<\/span><\/div>\n\t\n<\/nav>\n\n<section class=\"wp-block-group aa-events-hero aa-events-hero--art aa-events-hero--localised is-layout-flow wp-block-group-is-layout-flow\">\n\t\n\t<div class=\"wp-block-group aa-inner is-layout-flow wp-block-group-is-layout-flow\">\n\t\t<p class=\"aa-events-hero__kicker wp-block-paragraph\">Autres types<\/p>\n\t\t<h1 class=\"wp-block-heading\">Amylose localis\u00e9e<\/h1>\n\t\t<p class=\"wp-block-paragraph\">L\u2019amylose localis\u00e9e touche un organe, et un seul. Les plasmocytes qui fabriquent les cha\u00eenes l\u00e9g\u00e8res anormales se trouvent dans cet organe\u202f; rien ne circule dans le sang, donc rien ne se d\u00e9pose ailleurs. Parmi les amyloses, presque toujours multisyst\u00e9miques, elle fait figure d\u2019exception.<\/p>\n\t<\/div>\n\t\n\t\n\t<div class=\"wp-block-group aa-events-hero__art is-layout-flow wp-block-group-is-layout-flow\">\n\t\t\n\t\t<figure class=\"wp-block-image size-full\"><img decoding=\"async\" src=\"\/wp-content\/themes\/amyloidosis-alliance\/assets\/images\/disease\/localised.svg\" alt=\"Sch&#xE9;ma&#xA0;: un petit groupe de cellules au sein d&#x2019;un tissu lib&#xE8;re des cha&#xEE;nes l&#xE9;g&#xE8;res qui forment sur place une fibrille amylo&#xEF;de\"\/><\/figure>\n\t\t\n\t<\/div>\n\t\n<\/section>\n\n<nav class=\"wp-block-group aa-anchorband is-layout-flow wp-block-group-is-layout-flow\" aria-label=\"Section navigation\">\n\t\n\t<div class=\"wp-block-group aa-inner is-layout-flow wp-block-group-is-layout-flow\">\n\t\t\n\t\t<div class=\"wp-block-columns aa-anchor-cols is-layout-flex wp-container-core-columns-is-layout-b2e659ba wp-block-columns-is-layout-flex\">\n\t\t\t<div class=\"wp-block-column aa-anchor-item is-layout-flow wp-block-column-is-layout-flow\"><p class=\"num wp-block-paragraph\">01<\/p><p class=\"lbl wp-block-paragraph\"><a href=\"#what\">De quoi s\u2019agit-il\u202f?<\/a><\/p><\/div>\n\t\t\t<div class=\"wp-block-column aa-anchor-item is-layout-flow wp-block-column-is-layout-flow\"><p class=\"num wp-block-paragraph\">02<\/p><p class=\"lbl wp-block-paragraph\"><a href=\"#systemic\">Ou syst\u00e9mique\u202f?<\/a><\/p><\/div>\n\t\t\t<div class=\"wp-block-column aa-anchor-item is-layout-flow wp-block-column-is-layout-flow\"><p class=\"num wp-block-paragraph\">03<\/p><p class=\"lbl wp-block-paragraph\"><a href=\"#sites\">O\u00f9 elle appara\u00eet<\/a><\/p><\/div>\n\t\t\t<div class=\"wp-block-column aa-anchor-item is-layout-flow wp-block-column-is-layout-flow\"><p class=\"num wp-block-paragraph\">04<\/p><p class=\"lbl wp-block-paragraph\"><a href=\"#diagnosis\">Diagnostic<\/a><\/p><\/div>\n\t\t\t<div class=\"wp-block-column aa-anchor-item is-layout-flow wp-block-column-is-layout-flow\"><p class=\"num wp-block-paragraph\">05<\/p><p class=\"lbl wp-block-paragraph\"><a href=\"#treatment\">Traitement<\/a><\/p><\/div>\n\t\t\t<div class=\"wp-block-column aa-anchor-item is-layout-flow wp-block-column-is-layout-flow\"><p class=\"num wp-block-paragraph\">06<\/p><p class=\"lbl wp-block-paragraph\"><a href=\"#follow-up\">Suivi<\/a><\/p><\/div>\n\t\t<\/div>\n\t\t\n\t<\/div>\n\t\n<\/nav>\n\n<section class=\"wp-block-group aa-section aa-section--white aa-what is-layout-flow wp-block-group-is-layout-flow\" id=\"what\">\n\t\n\t<div class=\"wp-block-group aa-inner is-layout-flow wp-block-group-is-layout-flow\">\n\t\t\n\t\t<div class=\"wp-block-group is-layout-flow wp-block-group-is-layout-flow\">\n\t\t\t<p class=\"aa-section-num wp-block-paragraph\">01<\/p>\n\t\t\t<h2 class=\"wp-block-heading\">De quoi s\u2019agit-il\u202f?<\/h2>\n\t\t\t\n\t\t\t<div class=\"wp-block-group aa-key-idea is-layout-flow wp-block-group-is-layout-flow\">\n\t\t\t\t<p class=\"aa-key-idea__label wp-block-paragraph\">\u00c0 retenir<\/p>\n\t\t\t\t<p class=\"wp-block-paragraph\">Dans l\u2019amylose localis\u00e9e, les d\u00e9p\u00f4ts amylo\u00efdes se forment et restent dans un seul organe ou tissu. La prot\u00e9ine pr\u00e9curseur et les cellules qui la produisent varient selon le site touch\u00e9 et le sous-type.<\/p>\n\t\t\t<\/div>\n\t\t\t\n\t\t<\/div>\n\t\t\n\t\t\n\t\t<div class=\"wp-block-group aa-what-cols is-layout-flow wp-block-group-is-layout-flow\">\n\t\t\t\n\t\t\t<div class=\"wp-block-group aa-what-col is-layout-flow wp-block-group-is-layout-flow\">\n\t\t\t\t<h4 class=\"wp-block-heading\">Un organe, et un seul<\/h4>\n\t\t\t\t<p class=\"wp-block-paragraph\">Les amyloses localis\u00e9es touchent un seul organe ou tissu. La grande majorit\u00e9 sont des amyloses <strong>AL<\/strong>, des d\u00e9p\u00f4ts faits de cha\u00eenes l\u00e9g\u00e8res d\u2019immunoglobulines, exactement comme dans la forme syst\u00e9mique.<\/p>\n\t\t\t\t<p class=\"wp-block-paragraph\">Ce qui les distingue n\u2019est pas la prot\u00e9ine. C\u2019est l\u2019origine des cha\u00eenes l\u00e9g\u00e8res, et l\u2019endroit o\u00f9 elles vont.<\/p>\n\t\t\t<\/div>\n\t\t\t\n\t\t\t\n\t\t\t<div class=\"wp-block-group aa-what-col is-layout-flow wp-block-group-is-layout-flow\">\n\t\t\t\t<h4 class=\"wp-block-heading\">Un clone qui reste sur place<\/h4>\n\t\t\t\t<p class=\"wp-block-paragraph\">Les plasmocytes qui les produisent, ou dans certains cas un clone local de lymphocytes B, prolif\u00e8rent <strong>dans l\u2019organe lui-m\u00eame<\/strong>. Dans la plupart des cas, les cha\u00eenes l\u00e9g\u00e8res restent dans l\u2019organe\u202f; chez certains patients atteints d\u2019amylose AL localis\u00e9e, une cha\u00eene l\u00e9g\u00e8re monoclonale peut toutefois \u00eatre d\u00e9tect\u00e9e dans le sang, sans que les d\u00e9p\u00f4ts eux-m\u00eames n\u2019atteignent d\u2019autres organes. Les d\u00e9p\u00f4ts se forment l\u00e0 o\u00f9 se trouvent les cellules anormales, et nulle part ailleurs.<\/p>\n\t\t\t\t<p class=\"wp-block-paragraph\">La plupart des amyloses sont multisyst\u00e9miques. Les formes localis\u00e9es font exception, et c\u2019est ce m\u00e9canisme qui les rend telles.<\/p>\n\t\t\t<\/div>\n\t\t\t\n\t\t<\/div>\n\t\t\n\t<\/div>\n\t\n<\/section>\n\n<section class=\"wp-block-group aa-section aa-section--cream aa-tp-duo-sec is-layout-flow wp-block-group-is-layout-flow\" id=\"systemic\">\n\t\n\t<div class=\"wp-block-group aa-inner is-layout-flow wp-block-group-is-layout-flow\">\n\t\t\n\t\t<div class=\"wp-block-group aa-centered-head is-layout-flow wp-block-group-is-layout-flow\">\n\t\t\t<p class=\"aa-section-num wp-block-paragraph\">02<\/p>\n\t\t\t<h2 class=\"wp-block-heading\">Localis\u00e9e ou syst\u00e9mique\u202f?<\/h2>\n\t\t\t<div class=\"aa-divider-dot\"><\/div>\n\t\t\t<p class=\"wp-block-paragraph\">Deux maladies faites de la m\u00eame prot\u00e9ine. Tout ce qui compte (les organes menac\u00e9s, le traitement, le pronostic) d\u00e9pend de laquelle des deux il s\u2019agit.<\/p>\n\t\t<\/div>\n\t\t\n\t\t\n\t\t<div class=\"wp-block-group aa-tp-duo is-layout-flow wp-block-group-is-layout-flow\">\n\t\t\t\n\t\t\t<div class=\"wp-block-group aa-tp-duo__card is-layout-flow wp-block-group-is-layout-flow\">\n\t\t\t\t<p class=\"aa-tp-duo__tag wp-block-paragraph\">LOCALIS\u00c9E<\/p>\n\t\t\t\t<h3 class=\"wp-block-heading\">Limit\u00e9e \u00e0 un organe<\/h3>\n\t\t\t\t<p class=\"wp-block-paragraph\">Les plasmocytes prolif\u00e8rent sur place, et les cha\u00eenes l\u00e9g\u00e8res qu\u2019ils fabriquent restent pour l\u2019essentiel l\u00e0 o\u00f9 elles sont produites. M\u00eame lorsqu\u2019une cha\u00eene l\u00e9g\u00e8re monoclonale est d\u00e9tect\u00e9e dans le sang, les d\u00e9p\u00f4ts eux-m\u00eames n\u2019atteignent pas un organe \u00e9loign\u00e9.<\/p>\n\t\t\t\t<p class=\"wp-block-paragraph\">Le traitement est local\u00a0: chirurgie, radioth\u00e9rapie, ou traitement appliqu\u00e9 directement sur l\u2019organe.<\/p>\n\t\t\t<\/div>\n\t\t\t\n\t\t\t\n\t\t\t<div class=\"wp-block-group aa-tp-duo__card is-layout-flow wp-block-group-is-layout-flow\">\n\t\t\t\t<p class=\"aa-tp-duo__tag wp-block-paragraph\">SYST\u00c9MIQUE (AL)<\/p>\n\t\t\t\t<h3 class=\"wp-block-heading\">Transport\u00e9e par le sang<\/h3>\n\t\t\t\t<p class=\"wp-block-paragraph\">Un clone de plasmocytes de la moelle osseuse lib\u00e8re des cha\u00eenes l\u00e9g\u00e8res dans la circulation sanguine. Elles se d\u00e9posent dans le c\u0153ur, les reins, les nerfs, partout o\u00f9 le sang les emporte.<\/p>\n\t\t\t\t<p class=\"wp-block-paragraph\">Le traitement est une chimioth\u00e9rapie, dirig\u00e9e contre la moelle. <a href=\"https:\/\/www.amyloidosisalliance.org\/fr\/types-damylose\/amylose-al\/\">En savoir plus sur l\u2019amylose AL \u2192<\/a><\/p>\n\t\t\t<\/div>\n\t\t\t\n\t\t<\/div>\n\t\t\n\t\t\n\t\t<div class=\"wp-block-group aa-tp-note is-layout-flow wp-block-group-is-layout-flow\">\n\t\t\t<p class=\"wp-block-paragraph\">Tout l\u2019enjeu du bilan diagnostique est d\u2019\u00e9tablir laquelle des deux vous avez. Au microscope, les d\u00e9p\u00f4ts se ressemblent. Les maladies, non.<\/p>\n\t\t<\/div>\n\t\t\n\t<\/div>\n\t\n<\/section>\n\n<section class=\"wp-block-group aa-section aa-section--white aa-tp-symptoms is-layout-flow wp-block-group-is-layout-flow\" id=\"sites\">\n\t\n\t<div class=\"wp-block-group aa-inner is-layout-flow wp-block-group-is-layout-flow\">\n\t\t\n\t\t<div class=\"wp-block-group aa-centered-head is-layout-flow wp-block-group-is-layout-flow\">\n\t\t\t<p class=\"aa-section-num wp-block-paragraph\">03<\/p>\n\t\t\t<h2 class=\"wp-block-heading\">O\u00f9 elle appara\u00eet<\/h2>\n\t\t\t<div class=\"aa-divider-dot\"><\/div>\n\t\t\t<p class=\"wp-block-paragraph\">Comme un seul organe est touch\u00e9, les sympt\u00f4mes sont enti\u00e8rement ceux de cet organe. Ils ne disent rien de l\u2019amylose, et tout de l\u2019endroit o\u00f9 se trouvent les d\u00e9p\u00f4ts.<\/p>\n\t\t<\/div>\n\t\t\n\t\t\n\t\t<div class=\"wp-block-group aa-tp-organs aa-tp-organs--major is-layout-flow wp-block-group-is-layout-flow\">\n\t\t\t<div class=\"wp-block-group aa-tp-organ is-layout-flow wp-block-group-is-layout-flow\"><h3 class=\"wp-block-heading\">Les voies respiratoires<\/h3><p class=\"aa-tp-organ__tag wp-block-paragraph\">Larynx, trach\u00e9e, bronches<\/p><p class=\"wp-block-paragraph\">La voix change, peu \u00e0 peu, au fil des mois\u00a0: une dysphonie, souvent le premier signe que l\u2019on remarque. Une toux s\u2019installe, et la respiration devient plus difficile.<\/p><\/div>\n\t\t\t<div class=\"wp-block-group aa-tp-organ is-layout-flow wp-block-group-is-layout-flow\"><h3 class=\"wp-block-heading\">Les voies urinaires basses<\/h3><p class=\"aa-tp-organ__tag wp-block-paragraph\">Vessie, uret\u00e8re<\/p><p class=\"wp-block-paragraph\">Du sang appara\u00eet dans les urines. Uriner devient difficile, et une douleur s\u2019installe dans le bas-ventre. Ce sont les signes qui am\u00e8nent habituellement le patient chez un urologue.<\/p><\/div>\n\t\t\t<div class=\"wp-block-group aa-tp-organ is-layout-flow wp-block-group-is-layout-flow\"><h3 class=\"wp-block-heading\">Autres localisations<\/h3><p class=\"aa-tp-organ__tag wp-block-paragraph\">Plus rarement<\/p><p class=\"wp-block-paragraph\">Les d\u00e9p\u00f4ts peuvent aussi rester limit\u00e9s \u00e0 la conjonctive de l\u2019\u0153il, au tube digestif ou \u00e0 la peau. Partout o\u00f9 un petit groupe de plasmocytes s\u2019est install\u00e9, la substance amylo\u00efde peut s\u2019accumuler.<\/p><\/div>\n\t\t<\/div>\n\t\t\n\t\t\n\t\t<div class=\"wp-block-group aa-tp-flags is-layout-flow wp-block-group-is-layout-flow\">\n\t\t\t\n\t\t\t<div class=\"wp-block-group aa-tp-flags__photo is-layout-flow wp-block-group-is-layout-flow\">\n\t\t\t\t<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"683\" height=\"1024\" src=\"https:\/\/www.amyloidosisalliance.org\/wp-content\/uploads\/2026\/09\/a-clinician-holding-a-stethoscope-683x1024.jpg\" alt=\"Un clinicien tenant un st&#xE9;thoscope\" class=\"wp-image-682\" srcset=\"https:\/\/www.amyloidosisalliance.org\/wp-content\/uploads\/2026\/09\/a-clinician-holding-a-stethoscope-683x1024.jpg 683w, https:\/\/www.amyloidosisalliance.org\/wp-content\/uploads\/2026\/09\/a-clinician-holding-a-stethoscope-200x300.jpg 200w, https:\/\/www.amyloidosisalliance.org\/wp-content\/uploads\/2026\/09\/a-clinician-holding-a-stethoscope-768x1152.jpg 768w, https:\/\/www.amyloidosisalliance.org\/wp-content\/uploads\/2026\/09\/a-clinician-holding-a-stethoscope-1024x1536.jpg 1024w, https:\/\/www.amyloidosisalliance.org\/wp-content\/uploads\/2026\/09\/a-clinician-holding-a-stethoscope-1365x2048.jpg 1365w\" sizes=\"auto, (max-width: 683px) 100vw, 683px\" \/><\/figure>\n\t\t\t<\/div>\n\t\t\t\n\t\t\t\n\t\t\t<div class=\"wp-block-group aa-tp-flags__body is-layout-flow wp-block-group-is-layout-flow\">\n\t\t\t\t<h3 class=\"wp-block-heading\">Quand consulter<\/h3>\n\t\t\t\t<p class=\"wp-block-paragraph\">Chacun de ces sympt\u00f4mes a de tr\u00e8s nombreuses explications ordinaires, et l\u2019amylose n\u2019est presque jamais la premi\u00e8re envisag\u00e9e. Ce qui compte, c\u2019est qu\u2019un sympt\u00f4me qui persiste, et que rien n\u2019explique, m\u00e9rite d\u2019\u00eatre examin\u00e9 s\u00e9rieusement.<\/p>\n\t\t\t\t\n\t\t\t\t<ul class=\"wp-block-list aa-tp-flags__list\">\n\t\t\t\t\t<li>Une voix qui change au fil des mois<\/li>\n\t\t\t\t\t<li>Une toux qui ne passe pas<\/li>\n\t\t\t\t\t<li>Un essoufflement<\/li>\n\t\t\t\t\t<li>Du sang dans les urines<\/li>\n\t\t\t\t\t<li>Des difficult\u00e9s \u00e0 uriner<\/li>\n\t\t\t\t\t<li>Une douleur dans le bas-ventre<\/li>\n\t\t\t\t<\/ul>\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t<div class=\"wp-block-group aa-tp-alert is-layout-flow wp-block-group-is-layout-flow\">\n\t\t\t\t\t<p class=\"wp-block-paragraph\">Ce sont des maladies exceptionnelles, rarement \u00e9voqu\u00e9es d\u2019embl\u00e9e. Le plus souvent, la biopsie est r\u00e9alis\u00e9e pour \u00e9carter une tumeur.<\/p>\n\t\t\t\t<\/div>\n\t\t\t\t\n\t\t\t<\/div>\n\t\t\t\n\t\t<\/div>\n\t\t\n\t<\/div>\n\t\n<\/section>\n\n<section class=\"wp-block-group aa-section aa-section--cream aa-tp-dx is-layout-flow wp-block-group-is-layout-flow\" id=\"diagnosis\">\n\t\n\t<div class=\"wp-block-group aa-inner is-layout-flow wp-block-group-is-layout-flow\">\n\t\t\n\t\t<div class=\"wp-block-group aa-tp-dx__body is-layout-flow wp-block-group-is-layout-flow\">\n\t\t\t<p class=\"aa-section-num wp-block-paragraph\">04<\/p>\n\t\t\t<h2 class=\"wp-block-heading\">Comment elle est diagnostiqu\u00e9e<\/h2>\n\t\t\t<p class=\"aa-tp-dx__intro wp-block-paragraph\">Le diagnostic est g\u00e9n\u00e9ralement fait par hasard\u00a0: une biopsie r\u00e9alis\u00e9e parce qu\u2019on suspectait une tumeur r\u00e9v\u00e8le \u00e0 la place de la substance amylo\u00efde. La suite est plus difficile, et plus importante\u00a0: prouver que la maladie s\u2019arr\u00eate l\u00e0.<\/p>\n\t\t\t\n\t\t\t<div class=\"wp-block-group aa-tp-dx__steps is-layout-flow wp-block-group-is-layout-flow\">\n\t\t\t\t<div class=\"wp-block-group aa-tp-dx__step is-layout-flow wp-block-group-is-layout-flow\"><p class=\"aa-tp-dx__step-num wp-block-paragraph\">01<\/p><h4 class=\"wp-block-heading\">Une biopsie de l\u2019organe<\/h4><p class=\"wp-block-paragraph\">Un pr\u00e9l\u00e8vement est effectu\u00e9 sur le site touch\u00e9, et il r\u00e9v\u00e8le des d\u00e9p\u00f4ts amylo\u00efdes l\u00e0 o\u00f9 l\u2019on suspectait une tumeur maligne. C\u2019est tr\u00e8s souvent ainsi que ces maladies sont d\u00e9couvertes. La biopsie doit aussi rechercher une population clonale locale de plasmocytes ou de lymphocytes B.<\/p><\/div>\n\t\t\t\t<div class=\"wp-block-group aa-tp-dx__step is-layout-flow wp-block-group-is-layout-flow\"><p class=\"aa-tp-dx__step-num wp-block-paragraph\">02<\/p><h4 class=\"wp-block-heading\">Typer les d\u00e9p\u00f4ts<\/h4><p class=\"wp-block-paragraph\">L\u2019immunohistochimie permet d\u2019\u00e9tablir le type de substance amylo\u00efde en cause, m\u00eame si, en pratique, un typage pr\u00e9cis est rarement r\u00e9alis\u00e9.<\/p><\/div>\n\t\t\t\t<div class=\"wp-block-group aa-tp-dx__step is-layout-flow wp-block-group-is-layout-flow\"><p class=\"aa-tp-dx__step-num wp-block-paragraph\">03<\/p><h4 class=\"wp-block-heading\">Prouver qu\u2019elle est localis\u00e9e<\/h4><p class=\"wp-block-paragraph\">C\u2019est l\u2019objectif essentiel\u00a0: affirmer le caract\u00e8re localis\u00e9 des l\u00e9sions, et s\u2019assurer qu\u2019il n\u2019y a de substance amylo\u00efde dans aucun autre organe. Cela repose sur l\u2019examen clinique et des examens compl\u00e9mentaires, et c\u2019est ce qui distingue cette maladie de l\u2019amylose AL syst\u00e9mique.<\/p><\/div>\n\t\t\t<\/div>\n\t\t\t\n\t\t<\/div>\n\t\t\n\t\t\n\t\t<div class=\"wp-block-group aa-tp-dx__photo is-layout-flow wp-block-group-is-layout-flow\">\n\t\t\t<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"683\" src=\"https:\/\/www.amyloidosisalliance.org\/wp-content\/uploads\/2026\/09\/a-researcher-at-work-in-a-laboratory-1024x683.jpg\" alt=\"Une chercheuse au travail dans un laboratoire\" class=\"wp-image-683\" srcset=\"https:\/\/www.amyloidosisalliance.org\/wp-content\/uploads\/2026\/09\/a-researcher-at-work-in-a-laboratory-1024x683.jpg 1024w, https:\/\/www.amyloidosisalliance.org\/wp-content\/uploads\/2026\/09\/a-researcher-at-work-in-a-laboratory-300x200.jpg 300w, https:\/\/www.amyloidosisalliance.org\/wp-content\/uploads\/2026\/09\/a-researcher-at-work-in-a-laboratory-768x512.jpg 768w, https:\/\/www.amyloidosisalliance.org\/wp-content\/uploads\/2026\/09\/a-researcher-at-work-in-a-laboratory-1536x1024.jpg 1536w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\t\t<\/div>\n\t\t\n\t<\/div>\n\t\n<\/section>\n\n<section class=\"wp-block-group aa-section aa-section--white aa-treating is-layout-flow wp-block-group-is-layout-flow\" id=\"treatment\">\n\t\n\t<div class=\"wp-block-group aa-inner is-layout-flow wp-block-group-is-layout-flow\">\n\t\t\n\t\t<div class=\"wp-block-group aa-centered-head is-layout-flow wp-block-group-is-layout-flow\">\n\t\t\t<p class=\"aa-section-num wp-block-paragraph\">05<\/p>\n\t\t\t<h2 class=\"wp-block-heading\">Traitement<\/h2>\n\t\t\t<div class=\"aa-divider-dot\"><\/div>\n\t\t\t<p class=\"wp-block-paragraph\">Traiter l\u2019organe, pas la moelle. Il n\u2019existe pas de protocole unique\u00a0: la d\u00e9marche est d\u00e9cid\u00e9e au cas par cas.<\/p>\n\t\t<\/div>\n\t\t\n\t\t\n\t\t<div class=\"wp-block-group aa-tp-treat-lead is-layout-flow wp-block-group-is-layout-flow\">\n\t\t\t\n\t\t\t<div class=\"wp-block-group aa-tp-treat-lead__photo is-layout-flow wp-block-group-is-layout-flow\">\n\t\t\t\t<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"965\" height=\"1024\" src=\"https:\/\/www.amyloidosisalliance.org\/wp-content\/uploads\/2026\/09\/surgeons-operating-under-theatre-lights-965x1024.jpg\" alt=\"Des chirurgiens op&#xE9;rant sous les lumi&#xE8;res du bloc\" class=\"wp-image-684\" srcset=\"https:\/\/www.amyloidosisalliance.org\/wp-content\/uploads\/2026\/09\/surgeons-operating-under-theatre-lights-965x1024.jpg 965w, https:\/\/www.amyloidosisalliance.org\/wp-content\/uploads\/2026\/09\/surgeons-operating-under-theatre-lights-283x300.jpg 283w, https:\/\/www.amyloidosisalliance.org\/wp-content\/uploads\/2026\/09\/surgeons-operating-under-theatre-lights-768x815.jpg 768w, https:\/\/www.amyloidosisalliance.org\/wp-content\/uploads\/2026\/09\/surgeons-operating-under-theatre-lights-1448x1536.jpg 1448w\" sizes=\"auto, (max-width: 965px) 100vw, 965px\" \/><\/figure>\n\t\t\t<\/div>\n\t\t\t\n\t\t\t\n\t\t\t<div class=\"wp-block-group aa-tp-treat-lead__body is-layout-flow wp-block-group-is-layout-flow\">\n\t\t\t\t<h3 class=\"wp-block-heading\">Guid\u00e9 par ce que l\u2019organe ne peut plus faire<\/h3>\n\t\t\t\t<p class=\"wp-block-paragraph\">La prise en charge varie d\u2019un patient \u00e0 l\u2019autre, et elle est guid\u00e9e par l\u2019atteinte que les d\u00e9p\u00f4ts portent \u00e0 la fonction de l\u2019organe. Une voix devenue difficile \u00e0 utiliser, une vessie qui ne se vide plus\u00a0: c\u2019est cela, plut\u00f4t que la taille du d\u00e9p\u00f4t, qui d\u00e9cide de ce que l\u2019on fait.<\/p>\n\t\t\t\t<p class=\"wp-block-paragraph\">Comme les cha\u00eenes l\u00e9g\u00e8res ne quittent jamais l\u2019organe, il n\u2019y a rien dans le sang sur quoi un m\u00e9dicament syst\u00e9mique pourrait agir. C\u2019est pour cette seule raison que le traitement reste local.<\/p>\n\t\t\t<\/div>\n\t\t\t\n\t\t<\/div>\n\t\t\n\t\t\n\t\t<div class=\"wp-block-group aa-treating-grid is-layout-flow wp-block-group-is-layout-flow\">\n\t\t\t<div class=\"wp-block-group aa-treating-card is-layout-flow wp-block-group-is-layout-flow\"><span class=\"aa-icon-tile\"><svg aria-hidden=\"true\" focusable=\"false\" width=\"24\" height=\"24\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.75\" stroke-linecap=\"round\" stroke-linejoin=\"round\"><path d=\"M14.5 3.5 20 9l-8.5 8.5a3.5 3.5 0 0 1-5-5z\"><\/path><line x1=\"4\" y1=\"20\" x2=\"9\" y2=\"15\"><\/line><\/svg><\/span><h3 class=\"wp-block-heading\">L\u2019ablation chirurgicale<\/h3><p class=\"wp-block-paragraph\">Les d\u00e9p\u00f4ts peuvent \u00eatre retir\u00e9s chirurgicalement lorsqu\u2019ils g\u00eanent le fonctionnement de l\u2019organe. Le traitement chirurgical peut aussi faire appel au laser si n\u00e9cessaire. C\u2019est la r\u00e9ponse la plus directe \u00e0 un probl\u00e8me situ\u00e9 en un seul endroit.<\/p><\/div>\n\t\t\t<div class=\"wp-block-group aa-treating-card is-layout-flow wp-block-group-is-layout-flow\"><span class=\"aa-icon-tile\"><svg aria-hidden=\"true\" focusable=\"false\" width=\"24\" height=\"24\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.75\" stroke-linecap=\"round\" stroke-linejoin=\"round\"><circle cx=\"12\" cy=\"12\" r=\"3\"><\/circle><path d=\"M12 2v3\"><\/path><path d=\"M12 19v3\"><\/path><path d=\"M4.9 4.9l2.1 2.1\"><\/path><path d=\"M17 17l2.1 2.1\"><\/path><path d=\"M2 12h3\"><\/path><path d=\"M19 12h3\"><\/path><\/svg><\/span><h3 class=\"wp-block-heading\">La radioth\u00e9rapie<\/h3><p class=\"wp-block-paragraph\">Pour certaines l\u00e9sions, on a recours \u00e0 la radioth\u00e9rapie, lorsque la chirurgie co\u00fbterait plus qu\u2019elle n\u2019apporterait.<\/p><\/div>\n\t\t\t<div class=\"wp-block-group aa-treating-card is-layout-flow wp-block-group-is-layout-flow\"><span class=\"aa-icon-tile\"><svg aria-hidden=\"true\" focusable=\"false\" width=\"24\" height=\"24\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.75\" stroke-linecap=\"round\" stroke-linejoin=\"round\"><path d=\"M12 22a7 7 0 0 0 7-7c0-2-1-3.9-3-5.5s-3.5-4-4-6.5c-.5 2.5-2 4.9-4 6.5S5 13 5 15a7 7 0 0 0 7 7z\"><\/path><\/svg><\/span><h3 class=\"wp-block-heading\">Le traitement local<\/h3><p class=\"wp-block-paragraph\">Pour l\u2019amylose de la vessie, un traitement m\u00e9dical appliqu\u00e9 localement est possible, administr\u00e9 dans l\u2019organe plut\u00f4t que dans tout l\u2019organisme.<\/p><\/div>\n\t\t<\/div>\n\t\t\n\t\t\n\t\t<div class=\"wp-block-group aa-tp-support is-layout-flow wp-block-group-is-layout-flow\">\n\t\t\t<h4 class=\"wp-block-heading\">Quand recourt-on \u00e0 un traitement syst\u00e9mique\u202f?<\/h4>\n\t\t\t<p class=\"wp-block-paragraph\">Un traitement syst\u00e9mique n\u2019est g\u00e9n\u00e9ralement pas n\u00e9cessaire une fois le type de substance amylo\u00efde confirm\u00e9 et la maladie syst\u00e9mique \u00e9cart\u00e9e. Le traitement doit \u00eatre adapt\u00e9 \u00e0 l\u2019organe touch\u00e9 et \u00e0 chaque patient.<\/p>\n\t\t\t<p class=\"wp-block-paragraph\">Lorsqu\u2019il est envisag\u00e9, la d\u00e9cision revient \u00e0 une \u00e9quipe sp\u00e9cialis\u00e9e qui a d\u2019abord \u00e9tabli, sans aucun doute, que la maladie est r\u00e9ellement limit\u00e9e \u00e0 un seul organe.<\/p>\n\t\t<\/div>\n\t\t\n\t<\/div>\n\t\n<\/section>\n\n<section class=\"wp-block-group aa-section aa-section--forest aa-tp-outlook is-layout-flow wp-block-group-is-layout-flow\" id=\"follow-up\">\n\t\n\t<div class=\"wp-block-group aa-inner is-layout-flow wp-block-group-is-layout-flow\">\n\t\t\n\t\t<div class=\"wp-block-group aa-tp-outlook__photo is-layout-flow wp-block-group-is-layout-flow\">\n\t\t\t<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"701\" src=\"https:\/\/www.amyloidosisalliance.org\/wp-content\/uploads\/2026\/09\/a-hospital-team-walking-along-a-corridor-1024x701.jpg\" alt=\"Une &#xE9;quipe hospitali&#xE8;re marchant dans un couloir\" class=\"wp-image-685\" srcset=\"https:\/\/www.amyloidosisalliance.org\/wp-content\/uploads\/2026\/09\/a-hospital-team-walking-along-a-corridor-1024x701.jpg 1024w, https:\/\/www.amyloidosisalliance.org\/wp-content\/uploads\/2026\/09\/a-hospital-team-walking-along-a-corridor-300x206.jpg 300w, https:\/\/www.amyloidosisalliance.org\/wp-content\/uploads\/2026\/09\/a-hospital-team-walking-along-a-corridor-768x526.jpg 768w, https:\/\/www.amyloidosisalliance.org\/wp-content\/uploads\/2026\/09\/a-hospital-team-walking-along-a-corridor-1536x1052.jpg 1536w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\t\t<\/div>\n\t\t\n\t\t\n\t\t<div class=\"wp-block-group aa-tp-outlook__body is-layout-flow wp-block-group-is-layout-flow\">\n\t\t\t<p class=\"aa-section-num wp-block-paragraph\">06<\/p>\n\t\t\t<h2 class=\"wp-block-heading\">Suivi<\/h2>\n\t\t\t<h4 class=\"wp-block-heading\">Deux types de surveillance<\/h4>\n\t\t\t<p class=\"wp-block-paragraph\">La premi\u00e8re est locale, et rel\u00e8ve du sp\u00e9cialiste de l\u2019organe concern\u00e9\u00a0: un ORL lorsque le larynx est touch\u00e9, un urologue lorsque c\u2019est la vessie. Il surveille le d\u00e9p\u00f4t lui-m\u00eame, et ses effets sur l\u2019organe. Le suivi peut associer le sp\u00e9cialiste de l\u2019organe touch\u00e9 et un m\u00e9decin exp\u00e9riment\u00e9 dans l\u2019amylose, comme un interniste ou un h\u00e9matologue.<\/p>\n\t\t\t<h4 class=\"wp-block-heading\">Pourquoi la seconde compte<\/h4>\n\t\t\t<p class=\"wp-block-paragraph\">La seconde est g\u00e9n\u00e9rale, et sert \u00e0 v\u00e9rifier que la maladie est rest\u00e9e localis\u00e9e. Une fois le diagnostic d\u2019amylose localis\u00e9e confirm\u00e9, le risque d\u2019\u00e9volution vers une maladie syst\u00e9mique est extr\u00eamement faible. Le caract\u00e8re localis\u00e9 d\u2019une amylose n\u2019est pas \u00e9tabli une fois pour toutes puis class\u00e9. Il se v\u00e9rifie, et se rev\u00e9rifie.<\/p>\n\t\t\t<p class=\"aa-tp-outlook__closing wp-block-paragraph\">C\u2019est la m\u00eame prot\u00e9ine que dans l\u2019amylose AL. Ce n\u2019est pas la m\u00eame maladie, et toute la diff\u00e9rence tient \u00e0 l\u2019endroit o\u00f9 vont les cha\u00eenes l\u00e9g\u00e8res.<\/p>\n\t\t<\/div>\n\t\t\n\t<\/div>\n\t\n<\/section>\n\n<section class=\"wp-block-group aa-section aa-section--white aa-tp-faq is-layout-flow wp-block-group-is-layout-flow\">\n\t\n\t<div class=\"wp-block-group aa-inner is-layout-flow wp-block-group-is-layout-flow\">\n\t\t\n\t\t<div class=\"wp-block-group aa-centered-head is-layout-flow wp-block-group-is-layout-flow\">\n\t\t\t<p class=\"aa-section-num wp-block-paragraph\">FAQ<\/p>\n\t\t\t<h2 class=\"wp-block-heading\">Questions fr\u00e9quentes<\/h2>\n\t\t\t<div class=\"aa-divider-dot\"><\/div>\n\t\t<\/div>\n\t\t\n\t\t\n\t\t<div class=\"wp-block-group aa-acc is-layout-flow wp-block-group-is-layout-flow\">\n\t\t\t\n\t\t\t<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary>L\u2019amylose localis\u00e9e est-elle la m\u00eame chose que l\u2019amylose AL\u202f?<\/summary>\n\t\t\t<p class=\"wp-block-paragraph\">Les d\u00e9p\u00f4ts sont faits de la m\u00eame prot\u00e9ine, des cha\u00eenes l\u00e9g\u00e8res d\u2019immunoglobulines, et ils se ressemblent au microscope. Mais dans la forme localis\u00e9e, les plasmocytes qui les produisent se trouvent dans l\u2019organe touch\u00e9, et les cha\u00eenes l\u00e9g\u00e8res ne passent jamais dans la circulation sanguine. Aucun autre organe n\u2019est atteint. Le m\u00e9canisme diff\u00e8re, le traitement diff\u00e8re, et ce que le diagnostic signifie pour vous aussi.<\/p>\n\t\t\t<\/details>\n\t\t\t\n\t\t\t\n\t\t\t<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary>Peut-elle devenir syst\u00e9mique par la suite\u202f?<\/summary>\n\t\t\t<p class=\"wp-block-paragraph\">Le suivi g\u00e9n\u00e9ral existe justement pour r\u00e9pondre \u00e0 cette question, dans la dur\u00e9e. En plus de la surveillance locale de l\u2019organe, une surveillance plus large v\u00e9rifie que la maladie est rest\u00e9e l\u00e0 o\u00f9 elle a \u00e9t\u00e9 d\u00e9couverte. Ce n\u2019est pas une formalit\u00e9\u00a0: le caract\u00e8re localis\u00e9 se confirme par des contr\u00f4les, il ne se pr\u00e9sume pas.<\/p>\n\t\t\t<\/details>\n\t\t\t\n\t\t\t\n\t\t\t<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary>Aurai-je besoin d\u2019une chimioth\u00e9rapie\u202f?<\/summary>\n\t\t\t<p class=\"wp-block-paragraph\">Rarement. Un traitement m\u00e9dical syst\u00e9mique est rarement indiqu\u00e9 ici\u00a0: m\u00eame lorsqu\u2019une cha\u00eene l\u00e9g\u00e8re est d\u00e9tectable dans le sang, il n\u2019y a pas de clone m\u00e9dullaire entretenant une maladie syst\u00e9mique \u00e0 supprimer. Le traitement vise l\u2019organe\u00a0: chirurgie, radioth\u00e9rapie, ou traitement m\u00e9dical appliqu\u00e9 localement dans le cas de la vessie.<\/p>\n\t\t\t<\/details>\n\t\t\t\n\t\t\t\n\t\t\t<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary>Quels organes peuvent \u00eatre touch\u00e9s\u202f?<\/summary>\n\t\t\t<p class=\"wp-block-paragraph\">Le plus souvent les voies respiratoires (larynx, trach\u00e9e, bronches) ou les voies urinaires basses, c\u2019est-\u00e0-dire la vessie et l\u2019uret\u00e8re. Les d\u00e9p\u00f4ts peuvent aussi rester limit\u00e9s \u00e0 la conjonctive de l\u2019\u0153il, au tube digestif ou \u00e0 la peau.<\/p>\n\t\t\t<\/details>\n\t\t\t\n\t\t\t\n\t\t\t<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary>Le pronostic est-il meilleur que dans l\u2019amylose syst\u00e9mique\u202f?<\/summary>\n\t\t\t<p class=\"wp-block-paragraph\">En g\u00e9n\u00e9ral, oui, et nettement. Comme les d\u00e9p\u00f4ts restent en un seul endroit, les organes vitaux que menace l\u2019amylose syst\u00e9mique ne sont pas touch\u00e9s. Cela dit, ce sont des maladies exceptionnelles et chaque situation est unique\u202f; ce que les d\u00e9p\u00f4ts font \u00e0 l\u2019organe qu\u2019ils occupent, c\u2019est ce dont votre \u00e9quipe sp\u00e9cialis\u00e9e parlera avec vous.<\/p>\n\t\t\t<\/details>\n\t\t\t\n\t\t<\/div>\n\t\t\n\t\t\n\t\t<div class=\"wp-block-group aa-tp-disclaimer is-layout-flow wp-block-group-is-layout-flow\">\n\t\t\t<p class=\"wp-block-paragraph\">Cette page est une information g\u00e9n\u00e9rale destin\u00e9e aux patients, aux familles et aux professionnels de sant\u00e9. Elle ne remplace pas un avis m\u00e9dical. Parlez toujours de votre situation avec votre \u00e9quipe sp\u00e9cialis\u00e9e.<\/p>\n\t\t<\/div>\n\t\t\n\t<\/div>\n\t\n<\/section>\n\n<section class=\"wp-block-group aa-next aa-next--split is-layout-flow wp-block-group-is-layout-flow\">\n\t\n\t<div class=\"wp-block-group aa-inner is-layout-flow wp-block-group-is-layout-flow\">\n\t\t\n\t\t<div class=\"wp-block-group aa-next__head is-layout-flow wp-block-group-is-layout-flow\">\n\t\t\t<p class=\"aa-section-num wp-block-paragraph\">Continuer<\/p>\n\t\t\t<h2 class=\"wp-block-heading\">Autres types<\/h2>\n\t\t<\/div>\n\t\t\n\t\t\n\t\t<div class=\"wp-block-group aa-next__grid is-layout-flow wp-block-group-is-layout-flow\">\n\t\t\t<div class=\"wp-block-group aa-next-card is-layout-flow wp-block-group-is-layout-flow\"><h3 class=\"wp-block-heading\"><a href=\"https:\/\/www.amyloidosisalliance.org\/fr\/types-damylose\/amylose-al\/\">Amylose AL<\/a><\/h3><p class=\"wp-block-paragraph\">La forme syst\u00e9mique de la m\u00eame prot\u00e9ine, la maladie que celle-ci n\u2019est pas.<\/p><\/div>\n\t\t\t<div class=\"wp-block-group aa-next-card is-layout-flow wp-block-group-is-layout-flow\"><h3 class=\"wp-block-heading\"><a href=\"https:\/\/www.amyloidosisalliance.org\/fr\/types-damylose\/amyloses-hereditaires-rares\/\">Amyloses h\u00e9r\u00e9ditaires rares<\/a><\/h3><p class=\"wp-block-paragraph\">Les autres exceptions\u00a0: les prot\u00e9ines h\u00e9r\u00e9ditaires au-del\u00e0 de la transthyr\u00e9tine.<\/p><\/div>\n\t\t\t<div class=\"wp-block-group aa-next-card is-layout-flow wp-block-group-is-layout-flow\"><h3 class=\"wp-block-heading\"><a href=\"https:\/\/www.amyloidosisalliance.org\/fr\/types-damylose\/\">Tous les types<\/a><\/h3><p class=\"wp-block-paragraph\">Un guide de chaque sous-type, avec un tableau comparatif.<\/p><\/div>\n\t\t<\/div>\n\t\t\n\t<\/div>\n\t\n<\/section>\n","protected":false},"excerpt":{"rendered":"<p>Accueil\u203aAmylose\u203aTypes d\u2019amylose\u203aAutres types\u203aAmylose localis\u00e9e Autres types Amylose localis\u00e9e L\u2019amylose localis\u00e9e touche un organe, et un seul. Les plasmocytes qui fabriquent les cha\u00eenes l\u00e9g\u00e8res anormales se trouvent dans cet organe\u202f; rien ne circule dans le sang, donc rien ne se d\u00e9pose ailleurs. Parmi les amyloses, presque toujours multisyst\u00e9miques, elle fait figure d\u2019exception. 01 De quoi s\u2019agit-il\u202f? [&hellip;]<\/p>\n","protected":false},"author":0,"featured_media":0,"parent":1427,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-1411","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Amylose localis\u00e9e\u00a0: quand un seul organe est touch\u00e9<\/title>\n<meta name=\"description\" content=\"L\u2019amylose localis\u00e9e touche un organe et un seul, car les cellules anormales se trouvent \u00e0 l\u2019int\u00e9rieur. Comprendre o\u00f9 elle appara\u00eet, comment elle est d\u00e9couverte et trait\u00e9e.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.amyloidosisalliance.org\/fr\/types-damylose\/amylose-localisee\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Amylose localis\u00e9e\u00a0: quand un seul organe est touch\u00e9\" \/>\n<meta property=\"og:description\" content=\"L\u2019amylose localis\u00e9e touche un organe et un seul, car les cellules anormales se trouvent \u00e0 l\u2019int\u00e9rieur. Comprendre o\u00f9 elle appara\u00eet, comment elle est d\u00e9couverte et trait\u00e9e.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.amyloidosisalliance.org\/fr\/types-damylose\/amylose-localisee\/\" \/>\n<meta property=\"og:site_name\" content=\"Amyloidosis Alliance\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/AmyloidosisAlliance\/\" \/>\n<meta property=\"article:modified_time\" content=\"2026-09-29T09:03:51+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.amyloidosisalliance.org\/wp-content\/uploads\/2026\/09\/a-clinician-holding-a-stethoscope-683x1024.jpg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:site\" content=\"@amyloidosisa\" \/>\n<meta name=\"twitter:label1\" content=\"Dur\u00e9e de lecture estim\u00e9e\" \/>\n\t<meta name=\"twitter:data1\" content=\"10 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.amyloidosisalliance.org\\\/fr\\\/types-damylose\\\/amylose-localisee\\\/\",\"url\":\"https:\\\/\\\/www.amyloidosisalliance.org\\\/fr\\\/types-damylose\\\/amylose-localisee\\\/\",\"name\":\"Amylose localis\u00e9e\u00a0: quand un seul organe est touch\u00e9\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.amyloidosisalliance.org\\\/fr\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/www.amyloidosisalliance.org\\\/fr\\\/types-damylose\\\/amylose-localisee\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/www.amyloidosisalliance.org\\\/fr\\\/types-damylose\\\/amylose-localisee\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.amyloidosisalliance.org\\\/wp-content\\\/uploads\\\/2026\\\/09\\\/a-clinician-holding-a-stethoscope-683x1024.jpg\",\"datePublished\":\"2026-07-10T14:28:29+00:00\",\"dateModified\":\"2026-09-29T09:03:51+00:00\",\"description\":\"L\u2019amylose localis\u00e9e touche un organe et un seul, car les cellules anormales se trouvent \u00e0 l\u2019int\u00e9rieur. Comprendre o\u00f9 elle appara\u00eet, comment elle est d\u00e9couverte et trait\u00e9e.\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/www.amyloidosisalliance.org\\\/fr\\\/types-damylose\\\/amylose-localisee\\\/#breadcrumb\"},\"inLanguage\":\"fr-FR\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/www.amyloidosisalliance.org\\\/fr\\\/types-damylose\\\/amylose-localisee\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"fr-FR\",\"@id\":\"https:\\\/\\\/www.amyloidosisalliance.org\\\/fr\\\/types-damylose\\\/amylose-localisee\\\/#primaryimage\",\"url\":\"https:\\\/\\\/www.amyloidosisalliance.org\\\/wp-content\\\/uploads\\\/2026\\\/09\\\/a-clinician-holding-a-stethoscope-683x1024.jpg\",\"contentUrl\":\"https:\\\/\\\/www.amyloidosisalliance.org\\\/wp-content\\\/uploads\\\/2026\\\/09\\\/a-clinician-holding-a-stethoscope-683x1024.jpg\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/www.amyloidosisalliance.org\\\/fr\\\/types-damylose\\\/amylose-localisee\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Accueil\",\"item\":\"https:\\\/\\\/www.amyloidosisalliance.org\\\/fr\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Types d\u2019amylose\",\"item\":\"https:\\\/\\\/www.amyloidosisalliance.org\\\/fr\\\/types-of-amyloidosis\\\/\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Amylose localis\u00e9e\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/www.amyloidosisalliance.org\\\/fr\\\/#website\",\"url\":\"https:\\\/\\\/www.amyloidosisalliance.org\\\/fr\\\/\",\"name\":\"Amyloidosis Alliance\",\"description\":\"\",\"publisher\":{\"@id\":\"https:\\\/\\\/www.amyloidosisalliance.org\\\/fr\\\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/www.amyloidosisalliance.org\\\/fr\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"fr-FR\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/www.amyloidosisalliance.org\\\/fr\\\/#organization\",\"name\":\"Amyloidosis Alliance\",\"url\":\"https:\\\/\\\/www.amyloidosisalliance.org\\\/fr\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"fr-FR\",\"@id\":\"https:\\\/\\\/www.amyloidosisalliance.org\\\/fr\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"https:\\\/\\\/www.amyloidosisalliance.org\\\/wp-content\\\/uploads\\\/2026\\\/09\\\/logo.png\",\"contentUrl\":\"https:\\\/\\\/www.amyloidosisalliance.org\\\/wp-content\\\/uploads\\\/2026\\\/09\\\/logo.png\",\"width\":252,\"height\":252,\"caption\":\"Amyloidosis Alliance\"},\"image\":{\"@id\":\"https:\\\/\\\/www.amyloidosisalliance.org\\\/fr\\\/#\\\/schema\\\/logo\\\/image\\\/\"},\"sameAs\":[\"https:\\\/\\\/www.facebook.com\\\/AmyloidosisAlliance\\\/\",\"https:\\\/\\\/x.com\\\/amyloidosisa\"]}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Amylose localis\u00e9e\u00a0: quand un seul organe est touch\u00e9","description":"L\u2019amylose localis\u00e9e touche un organe et un seul, car les cellules anormales se trouvent \u00e0 l\u2019int\u00e9rieur. Comprendre o\u00f9 elle appara\u00eet, comment elle est d\u00e9couverte et trait\u00e9e.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.amyloidosisalliance.org\/fr\/types-damylose\/amylose-localisee\/","og_locale":"fr_FR","og_type":"article","og_title":"Amylose localis\u00e9e\u00a0: quand un seul organe est touch\u00e9","og_description":"L\u2019amylose localis\u00e9e touche un organe et un seul, car les cellules anormales se trouvent \u00e0 l\u2019int\u00e9rieur. Comprendre o\u00f9 elle appara\u00eet, comment elle est d\u00e9couverte et trait\u00e9e.","og_url":"https:\/\/www.amyloidosisalliance.org\/fr\/types-damylose\/amylose-localisee\/","og_site_name":"Amyloidosis Alliance","article_publisher":"https:\/\/www.facebook.com\/AmyloidosisAlliance\/","article_modified_time":"2026-09-29T09:03:51+00:00","og_image":[{"url":"https:\/\/www.amyloidosisalliance.org\/wp-content\/uploads\/2026\/09\/a-clinician-holding-a-stethoscope-683x1024.jpg","type":"","width":"","height":""}],"twitter_card":"summary_large_image","twitter_site":"@amyloidosisa","twitter_misc":{"Dur\u00e9e de lecture estim\u00e9e":"10 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/www.amyloidosisalliance.org\/fr\/types-damylose\/amylose-localisee\/","url":"https:\/\/www.amyloidosisalliance.org\/fr\/types-damylose\/amylose-localisee\/","name":"Amylose localis\u00e9e\u00a0: quand un seul organe est touch\u00e9","isPartOf":{"@id":"https:\/\/www.amyloidosisalliance.org\/fr\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.amyloidosisalliance.org\/fr\/types-damylose\/amylose-localisee\/#primaryimage"},"image":{"@id":"https:\/\/www.amyloidosisalliance.org\/fr\/types-damylose\/amylose-localisee\/#primaryimage"},"thumbnailUrl":"https:\/\/www.amyloidosisalliance.org\/wp-content\/uploads\/2026\/09\/a-clinician-holding-a-stethoscope-683x1024.jpg","datePublished":"2026-07-10T14:28:29+00:00","dateModified":"2026-09-29T09:03:51+00:00","description":"L\u2019amylose localis\u00e9e touche un organe et un seul, car les cellules anormales se trouvent \u00e0 l\u2019int\u00e9rieur. Comprendre o\u00f9 elle appara\u00eet, comment elle est d\u00e9couverte et trait\u00e9e.","breadcrumb":{"@id":"https:\/\/www.amyloidosisalliance.org\/fr\/types-damylose\/amylose-localisee\/#breadcrumb"},"inLanguage":"fr-FR","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.amyloidosisalliance.org\/fr\/types-damylose\/amylose-localisee\/"]}]},{"@type":"ImageObject","inLanguage":"fr-FR","@id":"https:\/\/www.amyloidosisalliance.org\/fr\/types-damylose\/amylose-localisee\/#primaryimage","url":"https:\/\/www.amyloidosisalliance.org\/wp-content\/uploads\/2026\/09\/a-clinician-holding-a-stethoscope-683x1024.jpg","contentUrl":"https:\/\/www.amyloidosisalliance.org\/wp-content\/uploads\/2026\/09\/a-clinician-holding-a-stethoscope-683x1024.jpg"},{"@type":"BreadcrumbList","@id":"https:\/\/www.amyloidosisalliance.org\/fr\/types-damylose\/amylose-localisee\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Accueil","item":"https:\/\/www.amyloidosisalliance.org\/fr\/"},{"@type":"ListItem","position":2,"name":"Types d\u2019amylose","item":"https:\/\/www.amyloidosisalliance.org\/fr\/types-of-amyloidosis\/"},{"@type":"ListItem","position":3,"name":"Amylose localis\u00e9e"}]},{"@type":"WebSite","@id":"https:\/\/www.amyloidosisalliance.org\/fr\/#website","url":"https:\/\/www.amyloidosisalliance.org\/fr\/","name":"Amyloidosis Alliance","description":"","publisher":{"@id":"https:\/\/www.amyloidosisalliance.org\/fr\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.amyloidosisalliance.org\/fr\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"fr-FR"},{"@type":"Organization","@id":"https:\/\/www.amyloidosisalliance.org\/fr\/#organization","name":"Amyloidosis Alliance","url":"https:\/\/www.amyloidosisalliance.org\/fr\/","logo":{"@type":"ImageObject","inLanguage":"fr-FR","@id":"https:\/\/www.amyloidosisalliance.org\/fr\/#\/schema\/logo\/image\/","url":"https:\/\/www.amyloidosisalliance.org\/wp-content\/uploads\/2026\/09\/logo.png","contentUrl":"https:\/\/www.amyloidosisalliance.org\/wp-content\/uploads\/2026\/09\/logo.png","width":252,"height":252,"caption":"Amyloidosis Alliance"},"image":{"@id":"https:\/\/www.amyloidosisalliance.org\/fr\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/www.facebook.com\/AmyloidosisAlliance\/","https:\/\/x.com\/amyloidosisa"]}]}},"_links":{"self":[{"href":"https:\/\/www.amyloidosisalliance.org\/fr\/wp-json\/wp\/v2\/pages\/1411","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.amyloidosisalliance.org\/fr\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.amyloidosisalliance.org\/fr\/wp-json\/wp\/v2\/types\/page"}],"replies":[{"embeddable":true,"href":"https:\/\/www.amyloidosisalliance.org\/fr\/wp-json\/wp\/v2\/comments?post=1411"}],"version-history":[{"count":3,"href":"https:\/\/www.amyloidosisalliance.org\/fr\/wp-json\/wp\/v2\/pages\/1411\/revisions"}],"predecessor-version":[{"id":1465,"href":"https:\/\/www.amyloidosisalliance.org\/fr\/wp-json\/wp\/v2\/pages\/1411\/revisions\/1465"}],"up":[{"embeddable":true,"href":"https:\/\/www.amyloidosisalliance.org\/fr\/wp-json\/wp\/v2\/pages\/1427"}],"wp:attachment":[{"href":"https:\/\/www.amyloidosisalliance.org\/fr\/wp-json\/wp\/v2\/media?parent=1411"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}