The expression of ER, PR, and erbB2/neu was available in 67 cases: ER or PR positivity was documented in 43 (64.2%) and 37 (55.2%) cases, respectively, whereas 35 patients (52.2%) had erbB2/neu-overexpressing (2+/3+ score) tumours (see Table 1). This evidence concerns the gene ERBB2 and neoplasm.