ERBB2 and cancer: Best results in terms of accuracies using tumor segmentation directly on the ADC map were achieved for luminal B cancers: luminal A vs. luminal B, 91.5 % (POE + ACC/based on COM and WAV features); luminal B vs. HER2-enriched, 100 % (Fisher/based on COM and WAV features); luminal B vs. TN, 89.3 % (POE + ACC/based on COM features); and luminal B vs. all others, 91.1 % (Fisher/based on WAV, ARM, and COM features).