Systemic treatment may benefit some women who have invasive breast cancer without lymph node involvement.
对于患有侵袭性乳腺癌但是尚未累及淋巴结的妇女，全身治疗可能效果最佳。
All patients had lymph node-negative breast cancer and were postmenopausal at the time of diagnosis.
所有患者在确诊时均有淋巴结阴性乳腺癌以及处在绝经期。
Conclusions: MMP-2 is an unfavorable prognostic factor in lymph node-negative breast carcinoma patients and it is an important prognostic factor.
结论：MMP - 2蛋白在淋巴结阴性乳腺癌转移复发中起着重要作用，是重要的预后因子。
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