Fig. 4
From: Predicting Nottingham grade in breast cancer digital pathology using a foundation model

Confusion Matrices for Nottingham Grade Classification in TCGA-BRCA and BRACS Datasets. (A) Confusion matrix from internal TCGA test set, showing the model’s classification performance across Nottingham grades 1, 2, and 3. (B) Confusion matrix from external BRACS validation set, illustrating the model’s generalizability in predicting Nottingham grades in an independent cohort