No differences were observed between the groups in terms of menopausal status, T stage, histological subtypes, PR status, HER2 status, grade, other histopathological features (perineural invasion (PNI), the intraductal component, multicentricity/multifocality, tumor necrosis, extracapsular invasion (ECE)), or Ki-67 values. This evidence concerns the gene ERBB2 and neoplasm.