ERBB2 and cancer: Likewise, using DWI for ROI delineation, best results in terms of accuracies were achieved for luminal B cancers: luminal A vs. luminal B, 89.5 % (MI/based on COM features); luminal B vs. HER2-enriched, 94.7 % (MI/entirely based on COM features); and luminal B vs. all others, 92.3 % (Fisher/mainly based on COM and HIS features).