{"version":"1.0","provider_name":"Best Cancers Hospitals","provider_url":"https:\/\/www.cancershospitals.com\/blog","author_name":"drcancer","author_url":"https:\/\/www.cancershospitals.com\/blog\/author\/drcancer\/","title":"R1 resection: Definition, Uses, and Clinical Overview - Best Cancers Hospitals","type":"rich","width":600,"height":338,"html":"<blockquote class=\"wp-embedded-content\" data-secret=\"jJOfv21wZa\"><a href=\"https:\/\/www.cancershospitals.com\/blog\/r1-resection-definition-uses-and-clinical-overview\/\">R1 resection: Definition, Uses, and Clinical Overview<\/a><\/blockquote><iframe sandbox=\"allow-scripts\" security=\"restricted\" src=\"https:\/\/www.cancershospitals.com\/blog\/r1-resection-definition-uses-and-clinical-overview\/embed\/#?secret=jJOfv21wZa\" width=\"600\" height=\"338\" title=\"&#8220;R1 resection: Definition, Uses, and Clinical Overview&#8221; &#8212; Best Cancers Hospitals\" data-secret=\"jJOfv21wZa\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\" class=\"wp-embedded-content\"><\/iframe><script type=\"text\/javascript\">\n\/* <![CDATA[ *\/\n\/*! This file is auto-generated *\/\n!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);\n\/\/# sourceURL=https:\/\/www.cancershospitals.com\/blog\/wp-includes\/js\/wp-embed.min.js\n\/* ]]> *\/\n<\/script>\n","description":"R1 resection is a surgical pathology term that describes a cancer operation where tumor cells are found at the cut edge (the \u201cmargin\u201d) under a microscope. In plain terms, it means the tumor was removed, but microscopic cancer may still be left behind at the surgical boundary. It is commonly used in surgical oncology reports for solid tumors, alongside R0 (clear margins) and R2 (visible residual tumor)."}