IMPORTANCE A recent publication reported that of 527 patients with clinically node-negative (cN0) cT1/cT2 triple-negative breast cancer (TNBC) or ERBB2-positive disease treated with neoadjuvant chemotherapy (NAC), 100% of those who achieved a breast pathologic complete response (pCR) had pathologic node negativity (pN0). Eliminating axillary surgery in these patients has been suggested as safe based on these results. OBJECTIVE To evaluate nodal positivity rates in patients with cT1/cT2 N0 ERBB2-positive disease and TNBC with a breast pCR after NAC using the National Cancer Database (NCDB), which included academic and community settings.
Ghergurovich et al. infused triple-negative breast cancer patients with [1,2-13 C] glucose to assess tumor metabolism. Metabolite labeling revealed a blend of glucose oxidation, glucose-driven biosynthesis, and classical Warburg metabolism, with most tumor lactate locally produced.
A clinical prediction model incorporating biologic subtype, grade, clinical node status, size of the largest SLN metastasis, and number of +SLNs can help physicians and patients estimate the likelihood of additional nodal disease and may be useful for guiding decision making regarding axillary management.
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