{"id":1990,"date":"2023-05-15T14:02:42","date_gmt":"2023-05-15T19:02:42","guid":{"rendered":"https:\/\/myeloma.ca\/quelles-sont-les-causes-dun-myelome\/"},"modified":"2026-06-02T16:49:45","modified_gmt":"2026-06-02T21:49:45","slug":"quelles-sont-les-causes-dun-myelome","status":"publish","type":"page","link":"https:\/\/myeloma.ca\/fr\/diagnostic-recent\/comprendre-son-diagnostic\/quelles-sont-les-causes-dun-myelome\/","title":{"rendered":"Quelles sont les causes d\u2019un my\u00e9lome?"},"content":{"rendered":"<div class=\"page-intro-block   block_1bce0fb0574324fa0af157ba0e4d7446\">\n    <div class=\"container\">\n        <div class=\"left-content\">\n            <div class=\"content\">\n                <h1>Quelles sont les causes d\u2019un <strong class='second-font-family is-italic is-italic-fw'>my\u00e9lome<\/strong>?<\/h1>\n            <\/div>\n            <div class=\"bottom-content\">\n                <div class=\"actions-btns-wrapper\">\n                    <a 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<div class=\"page-intro-image-wrapper\">\n\t\t<img loading=\"lazy\" decoding=\"async\" width=\"725\" height=\"725\" src=\"https:\/\/myeloma.ca\/wp-content\/uploads\/2023\/09\/what_causes_myeloma_hero.jpg\" class=\"attachment-full size-full\" alt=\"An older woman embraces her husband from behind, staring at the camera.\" srcset=\"https:\/\/myeloma.ca\/wp-content\/uploads\/2023\/09\/what_causes_myeloma_hero.jpg 725w, https:\/\/myeloma.ca\/wp-content\/uploads\/2023\/09\/what_causes_myeloma_hero-300x300.jpg 300w, https:\/\/myeloma.ca\/wp-content\/uploads\/2023\/09\/what_causes_myeloma_hero-150x150.jpg 150w\" sizes=\"auto, (max-width: 725px) 100vw, 725px\" \/>    <\/div>\n        <div class=\"left-content mobile\">\n            <div class=\"bottom-content\">\n                <div class=\"actions-btns-wrapper\">\n                    <a class=\"print-btn\" href=\"#\">\n                        <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"13.545\" height=\"14.195\" viewBox=\"0 0 13.545 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class=\"acf-innerblocks-container\">\n\t<div data-anchor-name=\"Comment un my\u00e9lome se d\u00e9veloppe-t-il?\"\n         id=\"comment-un-myelome-se-developpe-t-il\"\n         class=\"master-anchor-block\"\n    ><\/div>\n<div class=\" content-1-block m-pt2 m-pb3 m-pt2  block_393776631f1f66c0ca0918d595f25922  \" style=\"padding-top: 4rem;padding-bottom: 4rem;text-align: center;\">\n    <div class=\"container\">\n\t\t        <div class=\"content\">\n\t\t\t<h2 style=\"text-align: center;\"><span style=\"color: #000000;\">Comment un my\u00e9lome se <strong class='second-font-family is-italic is-italic-fw'><em>d\u00e9veloppe-t-il<\/em><\/strong>?<\/span><\/h2>\n<p style=\"text-align: center;\"><span style=\"color: #707070;\">Nous savons qu\u2019un my\u00e9lome multiple se d\u00e9veloppe lorsque des \u00ab erreurs \u00bb g\u00e9n\u00e9tiques se produisent dans l\u2019ADN des plasmocytes (un type de globules blancs produits dans la moelle osseuse). Cette erreur entra\u00eene une multiplication incontr\u00f4l\u00e9e des plasmocytes et une surproduction d\u2019un type d\u2019anticorps appel\u00e9 immunoglobuline. Lorsque cela se produit, ces plasmocytes ind\u00e9sirables deviennent des cellules my\u00e9lomateuses et envahissent en quelque sorte les cellules sanguines saines de la moelle osseuse, affectant ainsi diff\u00e9rentes parties du corps. Pourtant, malgr\u00e9 tous les travaux consacr\u00e9s \u00e0 la recherche sur les causes d\u2019un my\u00e9lome,<br \/>\n<\/span><span style=\"color: #707070;\">nous n\u2019avons pas encore bien compris pourquoi ces erreurs se produisent.<\/span><\/p>\n<p style=\"text-align: center;\"><span style=\"color: #707070;\">Bien que nous n\u2019ayons pas toutes les r\u00e9ponses concernant les causes d\u2019un my\u00e9lome, la recherche sugg\u00e8re des associations possibles entre un my\u00e9lome et un d\u00e9clin de la fonction immunitaire, ainsi que des facteurs g\u00e9n\u00e9tiques et environnementaux. Le fait pour une personne de pr\u00e9senter un ou plusieurs facteurs de risque ne signifie pas qu\u2019elle d\u00e9veloppera n\u00e9cessairement un my\u00e9lome. Les recherches actuelles sugg\u00e8rent que le my\u00e9lome se d\u00e9veloppe \u00e0 la suite d\u2019interactions complexes entre plusieurs facteurs.<br \/>\n<\/span><\/p>\n<p>&nbsp;<\/p>\n<p style=\"text-align: center;\"><div class=\"lb-button-wrapper\"><a class=\"btn btn-filled \" target=\"_self\" href=\"https:\/\/myeloma.ca\/fr\/diagnostic-recent\/signes-et-symptomes-dun-myelome\/\"><span>Signes et sympt\u00f4mes d\u2019un my\u00e9lome<\/span><\/a><\/div><\/p>\n        <\/div>\n    <\/div>\n<\/div>\n\n\t<div data-anchor-name=\"Facteurs de risque d\u2019un my\u00e9lome\"\n         id=\"facteurs-de-risque-dun-myelome\"\n         class=\"master-anchor-block\"\n    ><\/div>\n\n<div class=\"lb-accordion accordion-block m-pt3 m-pb3 m-pt1  block_771413990c12ee921b861abb11e1b07f \" style=\"padding-top: 6.25rem;padding-bottom: 9rem;background-color: var(--lb--light-grey);\">\n    <div class=\"container\">\n        <div class=\"pre-accordion-content\">\n\t\t\t                <h2><strong class='second-font-family is-italic is-italic-fw'>Facteurs de risque<\/strong> d\u2019un my\u00e9lome<\/h2>\n\t\t\t\t\t\t        <\/div>\n\t\t            <div class=\"accordion-wrapper\">\n\t\t\t\t                    <div class=\"lb-accordion-single \">\n                        <button class=\"lb-accordion-button\"\n                                type=\"button\">\n                            <span>\u00c2ge<\/span>\n                        <\/button>\n                        <div class=\"lb-accordion-content\" style=\"\">\n                            <div class=\"lb-accordion-inner-wrapper\">\n\t\t\t\t\t\t\t\t<ul>\n<li>L\u2019\u00e2ge est le facteur de risque le plus important pour un my\u00e9lome multiple.<\/li>\n<li>96 % des cas sont diagnostiqu\u00e9s chez les individus de plus de 45 ans.<\/li>\n<li>L\u2019\u00e2ge moyen au moment du diagnostic est le d\u00e9but de la soixantaine.<\/li>\n<li>75 % des personnes atteintes sont \u00e2g\u00e9es de plus de 70 ans<\/li>\n<\/ul>\n                            <\/div>\n                        <\/div>\n                    <\/div>\n\t\t\t\t                    <div class=\"lb-accordion-single \">\n                        <button class=\"lb-accordion-button\"\n                                type=\"button\">\n                            <span>Facteurs g\u00e9n\u00e9tiques\/ant\u00e9c\u00e9dents familiaux<\/span>\n                        <\/button>\n                        <div class=\"lb-accordion-content\" style=\"\">\n                            <div class=\"lb-accordion-inner-wrapper\">\n\t\t\t\t\t\t\t\t<ul>\n<li>Un my\u00e9lome n\u2019est <strong>PAS<\/strong> h\u00e9r\u00e9ditaire au m\u00eame titre d\u2019autres maladies (telles que les maladies caus\u00e9es par un seul g\u00e8ne h\u00e9r\u00e9ditaire).<\/li>\n<li>L\u2019incidence est l\u00e9g\u00e8rement plus \u00e9lev\u00e9e chez les parents au premier degr\u00e9 des personnes atteintes d\u2019un my\u00e9lome (parents, fr\u00e8res et s\u0153urs, et enfants).<\/li>\n<li>Certaines \u00ab erreurs \u00bb g\u00e9n\u00e9tiques h\u00e9r\u00e9ditaires peuvent augmenter le risque de d\u00e9velopper un my\u00e9lome, mais leur effet est tr\u00e8s faible.<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n                            <\/div>\n                        <\/div>\n                    <\/div>\n\t\t\t\t                    <div class=\"lb-accordion-single \">\n                        <button class=\"lb-accordion-button\"\n                                type=\"button\">\n                            <span>Conditions pr\u00e9existantes<\/span>\n                        <\/button>\n                        <div class=\"lb-accordion-content\" style=\"\">\n                            <div class=\"lb-accordion-inner-wrapper\">\n\t\t\t\t\t\t\t\t<p>Le risque de d\u00e9velopper un my\u00e9lome est plus \u00e9lev\u00e9 chez les personnes qui ont :<\/p>\n<ul>\n<li>re\u00e7u un diagnostic de GMSI (gammapathie monoclonale de signification ind\u00e9termin\u00e9e) ou de my\u00e9lome indolent<\/li>\n<li>des ant\u00e9c\u00e9dents de plasmocytomes solitaires de l\u2019os<\/li>\n<li>une maladie auto-immune (cela augmente l\u00e9g\u00e8rement le risque de d\u00e9velopper un my\u00e9lome)<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n                            <\/div>\n                        <\/div>\n                    <\/div>\n\t\t\t\t                    <div class=\"lb-accordion-single \">\n                        <button class=\"lb-accordion-button\"\n                                type=\"button\">\n                            <span>Genre<\/span>\n                        <\/button>\n                        <div class=\"lb-accordion-content\" style=\"\">\n                            <div class=\"lb-accordion-inner-wrapper\">\n\t\t\t\t\t\t\t\t<p>Le my\u00e9lome est l\u00e9g\u00e8rement plus fr\u00e9quent chez les hommes que chez les femmes<\/p>\n                            <\/div>\n                        <\/div>\n                    <\/div>\n\t\t\t\t                    <div class=\"lb-accordion-single \">\n                        <button class=\"lb-accordion-button\"\n                                type=\"button\">\n                            <span>Race<\/span>\n                        <\/button>\n                        <div class=\"lb-accordion-content\" style=\"\">\n                            <div class=\"lb-accordion-inner-wrapper\">\n\t\t\t\t\t\t\t\t<p>L\u2019incidence d\u2019un my\u00e9lome est plus \u00e9lev\u00e9e dans la population noire, les hommes pr\u00e9sentant ici \u00e9galement un risque plus \u00e9lev\u00e9 que les femmes de d\u00e9velopper la maladie.<\/p>\n                            <\/div>\n                        <\/div>\n                    <\/div>\n\t\t\t\t                    <div class=\"lb-accordion-single \">\n                        <button class=\"lb-accordion-button\"\n                                type=\"button\">\n                            <span>Facteurs environnementaux<\/span>\n                        <\/button>\n                        <div class=\"lb-accordion-content\" style=\"\">\n                            <div class=\"lb-accordion-inner-wrapper\">\n\t\t\t\t\t\t\t\t<ul>\n<li>Exposition \u00e0 de grandes quantit\u00e9s de radiations (agent Orange), ou \u00e0 certains produits chimiques agricoles et industriels, notamment :\n<ul>\n<li>Herbicides<\/li>\n<li>Insecticides<\/li>\n<li>Produits p\u00e9troliers<\/li>\n<li>M\u00e9taux lourds<\/li>\n<li>Plastiques<\/li>\n<li>Poussi\u00e8res diverses (amiante, benz\u00e8ne, charbon, poussi\u00e8re de bois, etc.)<\/li>\n<\/ul>\n<\/li>\n<li>Emplois pr\u00e9sentant des risques plus \u00e9lev\u00e9s que la moyenne :\n<ul>\n<li>Travailleurs agricoles<\/li>\n<li>Travailleurs du secteur p\u00e9trolier et du secteur de la production de machines<\/li>\n<li>Travailleurs du secteur de la menuiserie et de l\u2019industrie du cuir<\/li>\n<li>Pompiers<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n                            <\/div>\n                        <\/div>\n                    <\/div>\n\t\t\t\t            <\/div>\n\t\t    <\/div>\n\n<\/div>\n\n<div class=\" content-1-block   block_5048129720761daf2ffb87c1b84dd6e3  \" style=\"\">\n    <div class=\"container\">\n\t\t        <div class=\"content\">\n\t\t\t        <\/div>\n    <\/div>\n<\/div>\n\n\t<div data-anchor-name=\"Pr\u00e9curseurs d\u2019un my\u00e9lome\"\n         id=\"precurseurs-dun-myelome\"\n         class=\"master-anchor-block\"\n    ><\/div>\n<div class=\" content-2-block m-pt2 m-pb3   block_c2743b3b463447f33e43dd34c785247e     bg_blue has-image no-margin-top  \" style=\"\">\n    <div class=\"container\">\n        <div class=\"grid-content-2\">\n                            <div class=\"img-wrapper \">\n                    <img loading=\"lazy\" decoding=\"async\" width=\"470\" height=\"550\" src=\"https:\/\/myeloma.ca\/wp-content\/uploads\/2023\/09\/precursors_of_myeloma.jpg\" class=\"content-2-img\" alt=\"Une jeune femaile doctor talks with an older male patient\" srcset=\"https:\/\/myeloma.ca\/wp-content\/uploads\/2023\/09\/precursors_of_myeloma.jpg 470w, https:\/\/myeloma.ca\/wp-content\/uploads\/2023\/09\/precursors_of_myeloma-256x300.jpg 256w\" sizes=\"auto, (max-width: 470px) 100vw, 470px\" \/>                <\/div>\n                        <div class=\"content\">\n                <div>\n\t\t\t\t\t\t\t\t\t\t<h2><strong class='second-font-family is-italic is-italic-fw'>Pr\u00e9curseurs<\/strong> d\u2019un my\u00e9lome<\/h2>\n<p>Des conditions telles que la gammopathie monoclonale de signification ind\u00e9termin\u00e9e (GMSI) et un my\u00e9lome indolent (ou latent) sont typiquement asymptomatiques et peuvent \u00eatre des pr\u00e9curseurs d\u2019un my\u00e9lome actif (ou symptomatique). Des ant\u00e9c\u00e9dents de plasmocytomes solitaires peuvent \u00e9galement \u00eatre un signe pr\u00e9curseur de la maladie.<\/p>\n                <\/div>\n            <\/div>\n        <\/div>\n    <\/div>\n<\/div>\n\n\t<div data-anchor-name=\"Qu\u2019est-ce que la GMSI?\"\n         id=\"quest-ce-que-la-gmsi\"\n         class=\"master-anchor-block\"\n    ><\/div>\n<div class=\"list-with-icon-block m-pt2 m-pb3 m-pt2 m-pb3 block_1e4d28b8e3a7f6deb9cb7bbfb69cac41\" style=\"padding-top: var(--wp--preset--spacing--80);padding-bottom: var(--wp--preset--spacing--70);\">\n    <div class=\"container\">\n        <div class=\"pre-content-list\">\n\t\t\t                <h2>Qu\u2019est-ce que la <strong class='second-font-family is-italic is-italic-fw'>GMSI<\/strong>?<\/h2>\n\t\t\t\t\t\t                <div class=\"list-pre-content\"><p><span style=\"color: #3e3a3b;\">La GMSI, une affection qui peut \u00e9voluer vers un my\u00e9lome indolent ou actif, affecte la production de plasmocytes normaux dans la moelle osseuse. Des plasmocytes anormaux (les cellules my\u00e9lomateuses) sont produits \u00e0 la place, ce qui entra\u00eene la surproduction de clones anormaux d\u2019<\/span><span style=\"color: #3e3a3b;\">un type d\u2019anticorps appel\u00e9 anticorps monoclonal ou prot\u00e9ine M (\u00e9galement appel\u00e9 paraprot\u00e9ine, prot\u00e9ine d\u2019un my\u00e9lome ou pic-M).<\/span><\/p>\n<p><span style=\"color: #3e3a3b;\">Chez la plupart des personnes, la GMSI est asymptomatique, ce qui signifie qu\u2019elles ne ressentiront aucun sympt\u00f4me et qu\u2019aucun traitement ne sera n\u00e9cessaire. Il existe un faible risque, environ 1 % par ann\u00e9e, que la GMSI \u00e9volue vers une maladie qui n\u00e9cessiterait un traitement actif.<\/span><\/p>\n<p><span style=\"color: #3e3a3b;\">Il existe trois principaux types de GMSI, qui sont class\u00e9s en fonction du type d\u2019anticorps impliqu\u00e9 :<\/span><\/p>\n<\/div>\n\t\t\t        <\/div>\n        <div>\n\t\t            <div class=\"single-list-item-block center-icon-txt\">\n                <div class=\"icon-wrapper\"><img loading=\"lazy\" decoding=\"async\" width=\"55\" height=\"55\" src=\"https:\/\/myeloma.ca\/wp-content\/uploads\/2023\/05\/Groupe-3134.png\" class=\"attachment-thumbnail size-thumbnail\" alt=\"icone\" \/><\/div>\n                <div class=\"content-wrapper\"><p>GMSI non-IgM : un anticorps autre que l\u2019IgM est affect\u00e9. C\u2019est le type de GMSI le plus courant, et la partie de la cha\u00eene lourde de l\u2019anticorps est g\u00e9n\u00e9ralement une IgG ou IgA<\/p>\n<\/div>\n            <\/div>\n\t\t            <div class=\"single-list-item-block center-icon-txt\">\n                <div class=\"icon-wrapper\"><img loading=\"lazy\" decoding=\"async\" width=\"55\" height=\"55\" src=\"https:\/\/myeloma.ca\/wp-content\/uploads\/2023\/05\/Groupe-3135.png\" class=\"attachment-thumbnail size-thumbnail\" alt=\"icone\" \/><\/div>\n                <div class=\"content-wrapper\"><p>GMSI IgM : la partie de la cha\u00eene lourde de l\u2019anticorps affect\u00e9 est l\u2019IgM;<\/p>\n<\/div>\n            <\/div>\n\t\t            <div class=\"single-list-item-block center-icon-txt\">\n                <div class=\"icon-wrapper\"><img loading=\"lazy\" decoding=\"async\" width=\"55\" height=\"55\" src=\"https:\/\/myeloma.ca\/wp-content\/uploads\/2023\/05\/Groupe-3134-1.png\" class=\"attachment-thumbnail size-thumbnail\" alt=\"icone\" \/><\/div>\n                <div class=\"content-wrapper\"><p>GMSI \u00e0 cha\u00eenes l\u00e9g\u00e8res : la partie de la cha\u00eene l\u00e9g\u00e8re de l\u2019anticorps (kappa ou lambda) est affect\u00e9e \u00e0 la place de la cha\u00eene lourde.<br \/>\nIl est important de conna\u00eetre le type de GMSI pour \u00e9tablir le risque d\u2019\u00e9volution et pouvoir mieux prendre en charge la maladie.<\/p>\n<\/div>\n            <\/div>\n\t\t        <\/div>\n    <\/div>\n<\/div>\n\n\t<div data-anchor-name=\"Qu\u2019est-ce qu\u2019un my\u00e9lome indolent?\"\n         id=\"quest-ce-quun-myelome-indolent\"\n         class=\"master-anchor-block\"\n    ><\/div>\n<div class=\" content-2-block   block_01953b53681934a2ca1fadbdde069ab6      has-image  inverted dont-offset\" style=\"background-color: var(--lb--white);color: #3E3A3B;\">\n    <div class=\"container\">\n        <div class=\"grid-content-2\">\n                            <div class=\"img-wrapper \">\n                    <img loading=\"lazy\" decoding=\"async\" width=\"470\" height=\"550\" src=\"https:\/\/myeloma.ca\/wp-content\/uploads\/2023\/09\/smm.jpg\" class=\"content-2-img\" alt=\"Une femme \u00e2g\u00e9e blanche fixe la cam\u00e9ra en plein air.\" srcset=\"https:\/\/myeloma.ca\/wp-content\/uploads\/2023\/09\/smm.jpg 470w, https:\/\/myeloma.ca\/wp-content\/uploads\/2023\/09\/smm-256x300.jpg 256w\" sizes=\"auto, (max-width: 470px) 100vw, 470px\" \/>                <\/div>\n                        <div class=\"content\">\n                <div>\n\t\t\t\t\t\t\t\t\t\t<h2>Qu\u2019est-ce qu\u2019un <strong class='second-font-family is-italic is-italic-fw'>my\u00e9lome indolent<\/strong>?<\/h2>\n<p>Un my\u00e9lome indolent est un deuxi\u00e8me stade interm\u00e9diaire entre la GMSI et un my\u00e9lome actif. Comme pour la GMSI, la plupart des personnes atteintes d\u2019un my\u00e9lome indolent sont asymptomatiques. La principale diff\u00e9rence entre la GMSI et un my\u00e9lome indolent est le nombre de cellules my\u00e9lomateuses dans la moelle osseuse. Chez les personnes atteintes d\u2019un my\u00e9lome indolent, ce nombre se situe entre 10 % et 60 %. Les personnes atteintes d\u2019un my\u00e9lome indolent ne pr\u00e9sentent pas de sympt\u00f4mes CRAB.<\/p>\n<p>Le risque d\u2019\u00e9volution d\u2019un my\u00e9lome indolent vers un my\u00e9lome actif est d\u2019environ 10 % par an pendant les cinq premi\u00e8res ann\u00e9es. En raison de ce risque plus \u00e9lev\u00e9 d\u2019\u00e9volution, la plupart des personnes passent moins de temps au stade d\u2019un my\u00e9lome indolent (par rapport \u00e0 une GMSI) et se pr\u00e9sentent \u00e0 leur \u00e9quipe de soins lorsque les sympt\u00f4mes commencent \u00e0 se manifester ou lorsque l\u2019activit\u00e9 est d\u00e9tect\u00e9e par des analyses de sang de routine.<\/p>\n                <\/div>\n            <\/div>\n        <\/div>\n    <\/div>\n<\/div>\n\n<div class=\"cta-1-block m-pb5   block_910f8d65e22bfa6501c2fd744541708c\" style=\"padding-top: 6.5rem;padding-bottom: 7rem;\">\n    <div class=\"container\">\n        <div class=\"cta-1-wrapper\">\n            <div class=\"img-wrapper\">\n                <img loading=\"lazy\" decoding=\"async\" width=\"814\" height=\"864\" src=\"https:\/\/myeloma.ca\/wp-content\/uploads\/Infoguide-FR-MGUS-large.png\" class=\"attachment-large size-large\" alt=\"\" srcset=\"https:\/\/myeloma.ca\/wp-content\/uploads\/Infoguide-FR-MGUS-large.png 814w, https:\/\/myeloma.ca\/wp-content\/uploads\/Infoguide-FR-MGUS-large-283x300.png 283w, https:\/\/myeloma.ca\/wp-content\/uploads\/Infoguide-FR-MGUS-large-768x815.png 768w\" sizes=\"auto, (max-width: 814px) 100vw, 814px\" \/>            <\/div>\n            <div class=\"content-wrapper\">\n                <h3>Pour en savoir plus sur la GMSI et un my\u00e9lome indolent, consultez l\u2019InfoGuide MGUS et my\u00e9lome multiple indolent.<\/h3>\n                            <\/div>\n                            <div class=\"button-wrapper\">\n                    <a class=\"btn btn-empty\" target=\"_blank\" href=\"https:\/\/myeloma.ca\/wp-content\/uploads\/Infoguide-FR-MGUS.pdf\">T\u00e9l\u00e9charger un exemplaire<\/a>\n                <\/div>\n                    <\/div>\n    <\/div>\n<\/div>\n\n\t<div data-anchor-name=\"Plasmacytome solitaire\"\n         id=\"plasmacytome-solitaire\"\n         class=\"master-anchor-block\"\n    ><\/div>\n<div class=\" content-1-block m-pt2 m-pb3   block_8a9a38725ad60d91b9176b2ed758643d bg_blue \" style=\"padding-top: 8.25rem;padding-bottom: 11rem;text-align: center;background-color: var(--lb--blue);color: #ffffff;\">\n    <div class=\"container\">\n\t\t        <div class=\"content\">\n\t\t\t<h2 style=\"text-align: center;\"><strong class='second-font-family is-italic is-italic-fw'>Plasmocytome<\/strong> solitaire<\/h2>\n<p style=\"text-align: center;\">Parfois, les cellules my\u00e9lomateuses s\u2019accumulent dans un seul os et forment une tumeur appel\u00e9e plasmocytome osseux solitaire. Occasionnellement, les plasmocytomes peuvent m\u00eame affecter des tissus mous \u00e0 l\u2019ext\u00e9rieur des os (appel\u00e9e plasmocytome extram\u00e9dullaire). Les deux types de plasmocytome sont le plus souvent trait\u00e9s par radioth\u00e9rapie. Cependant, la majorit\u00e9 des personnes atteintes d\u2019un plasmocytome osseux finiront par d\u00e9velopper un my\u00e9lome actif.<\/p>\n<p>&nbsp;<\/p>\n<div class=\"lb-button-wrapper\"><a class=\"btn btn-empty \" target=\"_self\" href=\"https:\/\/myeloma.ca\/fr\/diagnostic-recent\/comment-diagnostique-t-on-un-myelome\/\"><span>Comment diagnostique-t-on un my\u00e9lome?<\/span><\/a><\/div>\n        <\/div>\n    <\/div>\n<\/div>\n\n<div class=\" content-2-block m-pt2 m-pb3 img-contain   block_5780c35f159bddcb007b13a5862d29d3      has-image no-margin-top inverted \" style=\"padding-bottom: 0.5rem;background-color: var(--lb--white);color: #3E3A3B;\">\n    <div class=\"container\">\n        <div class=\"grid-content-2\">\n                            <div class=\"img-wrapper \">\n                    <img loading=\"lazy\" decoding=\"async\" width=\"814\" height=\"864\" src=\"https:\/\/myeloma.ca\/wp-content\/uploads\/Handbook-FR-Patient-large.png\" class=\"content-2-img\" alt=\"\" srcset=\"https:\/\/myeloma.ca\/wp-content\/uploads\/Handbook-FR-Patient-large.png 814w, https:\/\/myeloma.ca\/wp-content\/uploads\/Handbook-FR-Patient-large-283x300.png 283w, https:\/\/myeloma.ca\/wp-content\/uploads\/Handbook-FR-Patient-large-768x815.png 768w\" sizes=\"auto, (max-width: 814px) 100vw, 814px\" \/>                <\/div>\n                        <div class=\"content\">\n                <div>\n\t\t\t\t\t\t\t\t\t\t<h2>Pour plus d\u2019information, t\u00e9l\u00e9chargez le<br \/>\nGuide destin\u00e9 aux patients atteints d\u2019un my\u00e9lome multiple<\/h2>\n<p>Con\u00e7u pour offrir un soutien \u00e9ducatif aux personnes atteintes d\u2019un my\u00e9lome, \u00e0 leurs proches aidants, \u00e0 leurs familles et \u00e0 leurs amis, ce guide fournit des informations pr\u00e9cises, fiables et claires au sujet du my\u00e9lome. Il contient des discussions approfondies sur ce qu\u2019est le my\u00e9lome, ses causes et ses effets, les diff\u00e9rents traitements offerts au Canada et la fa\u00e7on de g\u00e9rer votre parcours avec un my\u00e9lome.<\/p>\n<div class=\"lb-inline-buttons\"><div class=\"lb-button-wrapper\"><a class=\"btn btn-filled \" target=\"_blank\" href=\"https:\/\/myeloma.ca\/wp-content\/uploads\/Handbook-FR-Patient.pdf\"><span>T\u00e9l\u00e9charger un exemplaire <\/span><\/a><\/div><div class=\"lb-button-wrapper\"><a class=\"btn btn-empty \" target=\"_self\" href=\"https:\/\/myeloma.ca\/fr\/formulaire-de-commande-de-materiel-pedagogique\/\"><span>Commander un exemplaire imprim\u00e9<\/span><\/a><\/div><\/div>\n                <\/div>\n            <\/div>\n        <\/div>\n    <\/div>\n<\/div>\n<\/div>\n    <\/div>\n<\/div>\n<\/div>\n\n            <nav class=\"master-page-anchor-wrapper\">\n            <div class=\"master-page-anchor-header\">\n                <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"24.054\" height=\"33.63\" viewBox=\"0 0 24.054 33.63\"><path d=\"M195.2,91.649h16a4.033,4.033,0,0,0,4.029-4.029V69.084a.588.588,0,0,0-.106-.348l-.047-.042-.055-.064L204.1,58.185a.594.594,0,0,0-.42-.165H195.2a4.033,4.033,0,0,0-4.029,4.029V87.62A4.033,4.033,0,0,0,195.2,91.65Zm9.088-31.518,8.715,8.316h-7.633a1.06,1.06,0,0,1-1.06-1.06ZM192.448,62.04h0a2.761,2.761,0,0,1,2.756-2.757h7.816v8.1a2.336,2.336,0,0,0,2.332,2.332h8.6v17.9a2.761,2.761,0,0,1-2.756,2.757h-16a2.761,2.761,0,0,1-2.756-2.757Z\" transform=\"translate(-191.175 -58.02)\" fill=\"#fff\"\/><\/svg>\n                <span>Sur cette page<\/span>\n                <button class=\"master-page-anchor-toggler\" type=\"button\"><i class=\"fa-solid fa-chevrons-left\"><\/i><\/button>\n            <\/div>\n            <div class=\"master-page-anchor-hiddable\">\n                <div class=\"master-page-anchor-navigation\">\n\n                <\/div>\n                <div class=\"master-page-anchor-footer\">\n                    <a href=\"#\" class=\"back-to-top\">\n                        <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" width=\"20\" height=\"20\" viewBox=\"0 0 20 20\"><g transform=\"translate(-2843 426) rotate(-90)\"><circle cx=\"10\" cy=\"10\" r=\"10\" transform=\"translate(406 2843)\" fill=\"#1c596c\"\/><g transform=\"translate(412.135 2845)\"><g transform=\"translate(10.732 7.866) rotate(135)\"><path d=\"M0,4.968V0H4.968\" transform=\"translate(3.389 2.774)\" fill=\"none\" stroke=\"#fff\" stroke-linecap=\"round\" stroke-miterlimit=\"10\" stroke-width=\"1\"\/><\/g><\/g><\/g><\/svg>\n                        <span>Retour en haut<\/span>\n                    <\/a>\n                <\/div>\n            <\/div>\n        <\/nav>\n    \n<\/div>","protected":false},"excerpt":{"rendered":"","protected":false},"author":1,"featured_media":0,"parent":2114,"menu_order":16,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"footnotes":""},"tags":[],"class_list":["post-1990","page","type-page","status-publish","hentry"],"acf":[],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/myeloma.ca\/fr\/wp-json\/wp\/v2\/pages\/1990","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/myeloma.ca\/fr\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/myeloma.ca\/fr\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/myeloma.ca\/fr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/myeloma.ca\/fr\/wp-json\/wp\/v2\/comments?post=1990"}],"version-history":[{"count":79,"href":"https:\/\/myeloma.ca\/fr\/wp-json\/wp\/v2\/pages\/1990\/revisions"}],"predecessor-version":[{"id":35205,"href":"https:\/\/myeloma.ca\/fr\/wp-json\/wp\/v2\/pages\/1990\/revisions\/35205"}],"up":[{"embeddable":true,"href":"https:\/\/myeloma.ca\/fr\/wp-json\/wp\/v2\/pages\/2114"}],"wp:attachment":[{"href":"https:\/\/myeloma.ca\/fr\/wp-json\/wp\/v2\/media?parent=1990"}],"wp:term":[{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/myeloma.ca\/fr\/wp-json\/wp\/v2\/tags?post=1990"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}