Fig. 1: RCB class distribution in ILC vs. Non-ILC cases, overall and by receptor subtype.

The distribution of RCB class differs significantly by histologic group overall and among HR+HER2- cases (p < 0.001 for both, Fisher’s exact test), but not among TN or HER2+ cases (p = 0.163, Fisher’s exact test). (ILC invasive lobular carcinoma, HR hormone receptor, HER2 human epidermal growth factor-2, TN triple negative).