{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,17]],"date-time":"2026-08-17T14:36:25Z","timestamp":1786977385003,"version":"build-2736575974"},"reference-count":43,"publisher":"Oxford University Press (OUP)","issue":"9","license":[{"start":{"date-parts":[[2017,5,19]],"date-time":"2017-05-19T00:00:00Z","timestamp":1495152000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/academic.oup.com\/journals\/pages\/open_access\/funder_policies\/chorus\/standard_publication_model"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2017,7,13]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Background<\/jats:title>\n                    <jats:p>The treatment of axillary lymph node metastases after neoadjuvant systemic therapy (NST) remains debatable and axillary lymph node dissection (ALND) is still the standard of care. Marking axillary lymph nodes with radioactive iodine seeds (MARI procedure) is accurate in restaging the axilla after NST (false-negative rate 7 per cent). Here, the potential of tailored axillary treatment, determined by combining the results of PET\u2013CT before NST with those of the MARI procedure after NST, was analysed.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>A cohort of axillary node-positive patients was used to construct a hypothetical treatment algorithm based on a combination of PET\u2013CT and the MARI procedure. In the algorithm, the number of fluorodeoxyglucose (FDG)-avid axillary lymph nodes (1\u20133 versus 4 or more) before NST and the tumour status of the MARI node (positive versus negative) after NST were used to tailor axillary treatment. All patients in the cohort underwent ALND, allowing estimation of potential overtreatment and undertreatment.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>A total of 93 patients were included in the study. Between one and three FDG-avid axillary lymph nodes were observed in 59 patients, and four or more in 34 patients. The MARI node was tumour-negative in 32 patients and showed residual disease in 61. Treatment according to the constructed algorithm would have resulted in 74 per cent of patients avoiding an ALND, with potential undertreatment in three patients (3 per cent) and overtreatment in 16 (17 per cent).<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>Tailored axillary treatment after NST in node-positive patients, by combining PET\u2013CT before NST and the MARI procedure after NST, has the potential for ALND to be avoided in 74 per cent of patients.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1002\/bjs.10555","type":"journal-article","created":{"date-parts":[[2017,5,19]],"date-time":"2017-05-19T06:33:43Z","timestamp":1495175623000},"page":"1188-1196","source":"Crossref","is-referenced-by-count":62,"title":["Combined PET\u2013CT and axillary lymph node marking with radioactive iodine seeds (MARI procedure) for tailored axillary treatment in node-positive breast cancer after neoadjuvant therapy"],"prefix":"10.1093","volume":"104","author":[{"given":"B B","family":"Koolen","sequence":"first","affiliation":[{"name":"Department of Surgical Oncology, Netherlands Cancer Institute \u2013 Antoni van Leeuwenhoek Hospital, Amsterdam, The Netherlands"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"M","family":"Donker","sequence":"additional","affiliation":[{"name":"Department of Surgical Oncology, Netherlands Cancer Institute \u2013 Antoni van Leeuwenhoek Hospital, Amsterdam, The Netherlands"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"M E","family":"Straver","sequence":"additional","affiliation":[{"name":"Department of Surgical Oncology, Netherlands Cancer Institute \u2013 Antoni van Leeuwenhoek Hospital, Amsterdam, The Netherlands"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"M E M","family":"van der Noordaa","sequence":"additional","affiliation":[{"name":"Department of Surgical Oncology, 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