ERBB2 and metastatic malignant neoplasm in the lymph nodes: Univariate analysis showed that no lymph node metastasis (P = 0.013), higher histological grade (P = 0.009), HER2 IHC 0 (P = 0.013) and AR negative (P = 0.015) were more likely to achieve pCR after neoadjuvant therapy.