Fig. 3

Anti-HER-2/neu antibody staining in BC tissues. a Negative: No staining or weak membranous staining in < 5% of BC tissues. b Positive (+): Weak intensity membranous staining in up to 20% BC tumours. c Positive (++): Moderate intensity membranous staining in 20–50% of BC tissues. d Positive (+++): Strong intensity membranous staining in > 50% of BC tissues (Brown colour, red arrows). DAB detection. ×40 magnification