This study developed and validated a point-based scoring system (PSS) for stratifying the axillary lymph node (ALN) metastasis risk of breast cancer (BC) based on preoperative clinicopathological and MRI features compared with MRI-reported ALN status model and to explore its prognostic significance. The PSS in our study provides an easy tool for surgeons to assess breast cancer patients' risk for ALN metastasis prior to surgery. And the results showed that PSS had a relatively better performance than MRI-reported ALN status model (P=0.045),with a higher AUC, accuracy, and specificity, suggesting that PSS can be routinely used in axillary nodal staging.
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