Fig. 4: Association between germinal center formation in lymph nodes and prognosis in HR-negative breast cancers.

Kaplan–Meier curves: a invasive Disease-Free Survival (iDFS), b distant Disease-Free Survival (dDFS), c Overall Survival (OS), d invasive Disease-Free Survival (iDFS) in TNBC, e distant Disease-Free Survival (dDFS) in TNBC, and f Overall Survival (OS) in TNBC, according to stromal tumor-infiltrating lymphocytes (TILs) and germinal center (GC) number. Patient groups were stratified by TILs (≥20%, <20%) and the number of GCs (≤ 2GCs, > 2GC) in all assessed cancer-free LNs, as categorical variables. P values correspond to likelihood ratio tests.