1.0RFTC Japanhttps://rftcjapan.org/en/Victorhttps://rftcjapan.org/en/author/victor/rich600338<blockquote class="wp-embedded-content" data-secret="M91PLYMij4"><a href="https://rftcjapan.org/en/about-breast-cancer/what-is-breast-cancer/">What is Breast Cancer?</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="https://rftcjapan.org/en/about-breast-cancer/what-is-breast-cancer/embed/#?secret=M91PLYMij4" width="600" height="338" title="“What is Breast Cancer?” — RFTC Japan" data-secret="M91PLYMij4" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" class="wp-embedded-content"></iframe><script> /*! This file is auto-generated */ !function(d,l){"use strict";l.querySelector&&d.addEventListener&&"undefined"!=typeof URL&&(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&&!/[^a-zA-Z0-9]/.test(t.secret)){for(var s,r,n,a=l.querySelectorAll('iframe[data-secret="'+t.secret+'"]'),o=l.querySelectorAll('blockquote[data-secret="'+t.secret+'"]'),c=new RegExp("^https?:$","i"),i=0;i<o.length;i++)o[i].style.display="none";for(i=0;i<a.length;i++)s=a[i],e.source===s.contentWindow&&(s.removeAttribute("style"),"height"===t.message?(1e3<(r=parseInt(t.value,10))?r=1e3:~~r<200&&(r=200),s.height=r):"link"===t.message&&(r=new URL(s.getAttribute("src")),n=new URL(t.value),c.test(n.protocol))&&n.host===r.host&&l.activeElement===s&&(d.top.location.href=t.value))}},d.addEventListener("message",d.wp.receiveEmbedMessage,!1),l.addEventListener("DOMContentLoaded",function(){for(var e,t,s=l.querySelectorAll("iframe.wp-embedded-content"),r=0;r<s.length;r++)(t=(e=s[r]).getAttribute("data-secret"))||(t=Math.random().toString(36).substring(2,12),e.src+="#?secret="+t,e.setAttribute("data-secret",t)),e.contentWindow.postMessage({message:"ready",secret:t},"*")},!1)))}(window,document); //# sourceURL=https://rftcjapan.org/wpdata/wp-includes/js/wp-embed.min.js </script> Table of Contents About Breast Cancer Breast cancer is a disease in which abnormal cells in the breast grow uncontrollably and form a tumor. These cancer cells can invade nearby tissue and, in some cases, spread (metastasize) to other parts of the body such as the lymph nodes, bones, lungs, liver, or brain. It can […]https://rftcjapan.org/wpdata/wp-content/uploads/2026/02/breast-cancer-852x800.webp