As far as tumour grade is concerned, 50.6% of the tumours were grade II, 39.2% grade III, and 10.2% grade I. The grade II and III tumours predominantly (92.9% and 87.7%, respectively) over expressed Her-2 and were ER negative (95.2% and 84.6%, respectively). The gene discussed is ERBB2; the disease is neoplasm.