'Low cancer size of 2 cm or less, subarmpit axillary surgery can be omitted'
Dec 13, 2024
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Lee Jang-hee, a professor of surgery at Ewha Womans University Mokdong Hospital, recently published the results of the study 'Omission of axillary surgery in postmenopausal ER-positive/HER2-negative breast cancer patients receiving breast preservation treatment' in the international journal Land Surgery.
Axillary lymph node dissection was a standard surgery for breast cancer treatment until sentinel lymph node biopsy came out as a surgery to remove the compartment of the axillary lymph nodes such as breast cancer.
Professor Lee Jang-hee's research team studied 333 postmenopausal ER-positive/HER2-negative breast cancer patients who underwent breast preservation treatment for breast cancer from January 2003 to December 2017 for the possibility of omitting axillary surgery, including surveillance lymph node biopsy. All of the subjects were patients with no suspected maxillary metastasis on preoperative imaging (ultrasonic or MRI).
As a result of the study, it was confirmed that the risk factor related to lymph node metastasis was the case where the size of the cancer was larger than 2 cm, and the risk of lymph node metastasis decreased when the age was over 70.
In addition, the proportion of patients with lymph node metastasis among patients with cancer size less than 2 cm was 19.1%, but 40.7% of patients with cancer size more than 2 cm. Subsequently, even if there were more than three metastases, there was a difference of 3.6% in tumors under 2 cm and 7.4% in tumors over 2 cm.
When the size of the tumor was less than 2 cm, the rate of lymph node metastasis was low, so it was confirmed that the axillary surgery under the armpit could be omitted.
Professor Lee Jang-hee said, `Traditionally, the results of axillary surgery have been very important clinically in the decision of postoperative adjuvant therapy as well as the removal of cancer, but the importance of it has gradually decreased due to the recent development of test methods including multiple genetic tests"In the future, follow-up studies will be conducted on patients with specific conditions considering both surgery and postoperative adjuvant treatment" he said.
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This article was translated by Naver AI translator.
