cN3 indicates metastases in ipsilateral infraclavicular (level III axillary) lymph node(s) — with or without level I, II axillary node involvement — or in ipsilateral internal mammary lymph node(s) with level I, II axillary lymph node metastasis; or metastasis in ipsilateral supraclavicular lymph node(s), with or without axillary or internal mammary lymph node involvement.
Learn more about breast cancer staging.
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Cite this: Elwyn C. Cabebe. Fast Five Quiz: Key Aspects of Metastatic Breast Cancer - Medscape - Dec 02, 2021.
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