Using ‘Genefu’ we could stratify tumour samples into, luminal-A consisting of 7 cases (24%), luminal-B consisting of 6 cases (20%), basal consisting of 9 cases (31%), HER2/neu overexpressing tumours consisting of 6 cases (20%) and normal-like subtype consisting of 1 case (3%). The gene discussed is ERBB2; the disease is neoplasm.