ERBB2 and neoplasm: For HER2-status positive type prediction, the model performance (AUC = 0.816) based on the washout region is higher than that based on the whole tumor (AUC = 0.722) in the training set, and the model performance based on the washout region (AUC = 0.735) is slightly higher than that based on the whole tumor (AUC = 0.706) in the test set.