On univariate logistic regression analysis, grade (p < 0.001), tumor size (p < 0.001), histology (p < 0.001), Her2+ (p = 0.020), lymphovascular invasion (LVI; p < 0.001), and age (p < 0.001) at diagnosis were all associated with axillary lymph node positivity (Table 2). Here, ERBB2 is linked to neoplasm.