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Incidental axillary lymphadenopathy found on radiation planning CT
International Journal of Radiation Oncology • Biology • Physics ( IF 7 ) Pub Date : 2024-02-22 , DOI: 10.1016/j.ijrobp.2024.02.011 Renata Faermann , Miri Sklair-Levy , Anat Shalmon , Osnat Halshtok Neiman , Michael Gotlieb , Yael Yagil , David Samoocha , Shira Galper , Dov Zippel , Tehillah S. Menes , Nora Balint-Lahat , Orit Kaidar-Person
International Journal of Radiation Oncology • Biology • Physics ( IF 7 ) Pub Date : 2024-02-22 , DOI: 10.1016/j.ijrobp.2024.02.011 Renata Faermann , Miri Sklair-Levy , Anat Shalmon , Osnat Halshtok Neiman , Michael Gotlieb , Yael Yagil , David Samoocha , Shira Galper , Dov Zippel , Tehillah S. Menes , Nora Balint-Lahat , Orit Kaidar-Person
The aim of this study was to evaluate the rate of axillary node positive disease in early breast cancer patients who had a suspicious axillary lymph node on radiation planning CT. A retrospective review of the medical records of all breast cancer patients who were referred for axillary ultrasound from the radiation unit to the breast imaging unit at the Meirav Breast Center, Sheba Medical Center, during 2012-2022. Ethics approval was obtained. Only the records of patients who were referred due to an abnormal axillary lymph node seen on radiation planning-CT were further evaluated. During the study period, a total of 21 patients were referred to the breast imaging unit for evaluation of suspicious nodes seen on radiation planning CT. Of these, 3 cases were excluded. A total of 15 out of the 18 (83%) patients included had an abnormal lymph node in the ultrasound and an ultrasound guided biopsy was recommended (BI-RADS 4). Of these, 3 (out of 15, 20%) had a positive biopsy for tumor cells from axillary lymph node. Two were cases after primary systemic therapy without complete pathologic response. Thickening of the lymph node cortex and complete loss of the central fatty hilum were associated with pathologic lymph node. The sonar had limited ability to differentiate reactive nodes from involved nodes. The presence of lymph nodes with loss of cortical-hilum differentiation on ultrasound together with clinical features are parameters that can help guiding the need of further biopsy. Histopathology evaluation is important to make the diagnosis of residual axillary disease. Future studies and guidelines are needed to improve the diagnostic abilities and reduce the number of patients who are undergoing biopsy for non-involved nodes.
更新日期：2024-02-22
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