{"id":9771,"date":"2022-07-12T19:32:32","date_gmt":"2022-07-12T19:32:32","guid":{"rendered":"https:\/\/medicalcriteria.com\/web\/?p=9771"},"modified":"2025-12-30T20:12:12","modified_gmt":"2025-12-30T20:12:12","slug":"breast-cancer-stages","status":"publish","type":"post","link":"https:\/\/medicalcriteria.com\/web\/breast-cancer-stages\/","title":{"rendered":"Breast Cancer Stages"},"content":{"rendered":"<div class=\"99c380e4b4a7b96c35d7ddf7dcb434e8\" data-index=\"1\" style=\"float: none; margin:0px 0 0px 0; text-align:center;\">\n<script async src=\"https:\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js\"><\/script>\r\n<!-- MC 2019- Horizontal -->\r\n<ins class=\"adsbygoogle\"\r\n     style=\"display:block\"\r\n     data-ad-client=\"ca-pub-0127150553352455\"\r\n     data-ad-slot=\"3806776041\"\r\n     data-ad-format=\"auto\"\r\n     data-full-width-responsive=\"true\"><\/ins>\r\n<script>\r\n     (adsbygoogle = window.adsbygoogle || []).push({});\r\n<\/script>\n<\/div>\n<p>The staging system most often used for breast cancer is the American Joint Committee on Cancer (AJCC) TNM system. The most recent AJCC system, has both clinical and pathologic staging systems for breast cancer.<!--more--><\/p>\n<p><strong>Description of breast cancer staging<\/strong><\/p>\n<table style=\"border-collapse: collapse; width: 100%;\" border=\"1\">\n<tbody>\n<tr>\n<td style=\"width: 18.3761%;\"><strong>Stage<\/strong><\/td>\n<td style=\"width: 81.6239%;\"><strong>Description<\/strong><\/td>\n<\/tr>\n<tr>\n<td style=\"width: 18.3761%;\" colspan=\"2\"><strong>Noninvasive<\/strong><\/td>\n<\/tr>\n<tr>\n<td style=\"width: 18.3761%; text-align: center;\">0<\/td>\n<td style=\"width: 81.6239%;\">No evidence of cancer cells or invasion of the basement membrane of the duct or neighbouring normal tissue; includes ductal carcinoma in situ<\/td>\n<\/tr>\n<tr>\n<td style=\"width: 18.3761%;\" colspan=\"2\"><strong>Invasive<\/strong><\/td>\n<\/tr>\n<tr>\n<td style=\"width: 18.3761%; text-align: center;\">IA<\/td>\n<td style=\"width: 81.6239%;\">\u2022 Tumour \u2264 2 cm AND<br \/>\n\u2022 No spread outside the breast; no lymph nodes involved<\/td>\n<\/tr>\n<tr>\n<td style=\"width: 18.3761%; text-align: center;\">IB<\/td>\n<td style=\"width: 81.6239%;\">\u2022 No tumour in the breast, but microscopic metastases (&gt; 0.2 mm but \u2264 2 mm) present<br \/>\nin axillary lymph nodes OR<br \/>\n\u2022 Tumour present in the breast, \u2264 2 cm, with involvement of lymph nodes<\/td>\n<\/tr>\n<tr>\n<td style=\"width: 18.3761%; text-align: center;\">IIA<\/td>\n<td style=\"width: 81.6239%;\">\u2022 No tumour in the breast, but macroscopic cancer (&gt; 2 mm) in 1\u20133 axillary lymph nodes OR<br \/>\n\u2022 Tumour \u2264 2 cm, with spread to axillary lymph nodes OR<br \/>\n\u2022 Tumour &gt; 2 cm but \u2264 5 cm, with no spread to axillary lymph nodes<\/td>\n<\/tr>\n<tr>\n<td style=\"width: 18.3761%; text-align: center;\">IIB<\/td>\n<td style=\"width: 81.6239%;\">\u2022 Tumour &gt; 2 cm but \u2264 5 cm, with spread to 1\u20133 axillary lymph nodes OR<br \/>\n\u2022 Tumour &gt; 5 cm, with no spread to axillary lymph nodes<\/td>\n<\/tr>\n<tr>\n<td style=\"width: 18.3761%; text-align: center;\">IIIA<\/td>\n<td style=\"width: 81.6239%;\">\u2022 No tumour in the breast or presence of a breast tumour of any size associated with metastases in 4\u20139 axillary lymph nodes or in internal mammary nodes OR<br \/>\n\u2022 Tumour &gt; 5 cm, with spread to axillary and\/or internal mammary nodes<\/td>\n<\/tr>\n<tr>\n<td style=\"width: 18.3761%; text-align: center;\">IIIB<\/td>\n<td style=\"width: 81.6239%;\">\u2022 Tumour of any size, with spread to chest wall and\/or skin of the breast; may also have spread to axillary or internal mammary nodes<\/td>\n<\/tr>\n<tr>\n<td style=\"width: 18.3761%; text-align: center;\">IIIC<\/td>\n<td style=\"width: 81.6239%;\">\u2022 Tumour of any size, with spread to \u2265 10 axillary lymph nodes OR<br \/>\n\u2022 Spread to lymph nodes above or below the collarbone (supraclavicular nodes) OR<br \/>\n\u2022 Spread to both axillary lymph nodes and internal mammary nodes<\/td>\n<\/tr>\n<tr>\n<td style=\"width: 18.3761%;\" colspan=\"2\"><strong>Metastatic<\/strong><\/td>\n<\/tr>\n<tr>\n<td style=\"width: 18.3761%; text-align: center;\">IV<\/td>\n<td style=\"width: 81.6239%;\">Spread of cancer to other parts of the body such as liver, lung or bone<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Add to stages<\/p>\n<ul>\n<li>Estrogen Receptor (ER) status<\/li>\n<li>Progesterone Receptor (PR) status<\/li>\n<li>HER2 status<\/li>\n<li>Grade of the cancer (G)<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<p><strong>References:<\/strong><\/p>\n<ol>\n<li>Simos D, Catley C, van Walraven C, Arnaout A, Booth CM, McInnes M, Fergusson D, Dent S, Clemons M. Imaging for distant metastases in women with early-stage breast cancer: a population-based cohort study. CMAJ. 2015 Sep 8;187(12):E387-97. <a href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/26100841\/\" target=\"_blank\" rel=\"noopener\">[Medline]<\/a><\/li>\n<li>Zhu H, Do\u011fan BE. American Joint Committee on Cancer&#8217;s Staging System for Breast Cancer, Eighth Edition: Summary for Clinicians. Eur J Breast Health. 2021 Jun 24;17(3):234-238. <a href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/34263150\/\" target=\"_blank\" rel=\"noopener\">[Medline]<\/a><\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n<p>Created Jul 14, 2022.<\/p>\n\n<div style=\"font-size: 0px; height: 0px; line-height: 0px; margin: 0; padding: 0; clear: both;\"><\/div>","protected":false},"excerpt":{"rendered":"<p>Sorry, this entry is only available in Espa\u00f1ol.<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_lmt_disableupdate":"no","_lmt_disable":"no","_exactmetrics_skip_tracking":false,"_exactmetrics_sitenote_active":false,"_exactmetrics_sitenote_note":"","_exactmetrics_sitenote_category":0,"footnotes":""},"categories":[87],"tags":[712,322,840,708],"class_list":["post-9771","post","type-post","status-publish","format-standard","hentry","category-obstetrics-gynecology","tag-breast","tag-cancer","tag-estadificacion","tag-mama"],"modified_by":"Guillermo Firman","_links":{"self":[{"href":"https:\/\/medicalcriteria.com\/web\/wp-json\/wp\/v2\/posts\/9771","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/medicalcriteria.com\/web\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/medicalcriteria.com\/web\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/medicalcriteria.com\/web\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/medicalcriteria.com\/web\/wp-json\/wp\/v2\/comments?post=9771"}],"version-history":[{"count":10,"href":"https:\/\/medicalcriteria.com\/web\/wp-json\/wp\/v2\/posts\/9771\/revisions"}],"predecessor-version":[{"id":9791,"href":"https:\/\/medicalcriteria.com\/web\/wp-json\/wp\/v2\/posts\/9771\/revisions\/9791"}],"wp:attachment":[{"href":"https:\/\/medicalcriteria.com\/web\/wp-json\/wp\/v2\/media?parent=9771"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/medicalcriteria.com\/web\/wp-json\/wp\/v2\/categories?post=9771"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/medicalcriteria.com\/web\/wp-json\/wp\/v2\/tags?post=9771"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}