ERBB2 and neoplasm: For the TN&HER2+ subgroup, the change in MRI tumor load model had an estimated CV AUC of 0.67 (95% CI 0.56–0.79), the %TILs only model an estimated CV AUC of 0.63 (95% CI 0.49–0.74), while the combined model had an estimated CV AUC of 0.70(95% CI 0.59–0.82).