LVI, fibrotic focus and sTILs in triple-negative breast cancer. Whole slide images of H&E-stained triple-negative breast cancer representative for (A) the presence of LVI, (B) fibrotic focus with >75% sTILs and (C) fibrotic focus with <30% sTILs. (D) A detailed region of panel A with LVI, (E) of panel B with a sTILs score of >75% and (F) of panel C with a sTILs score of <30%. Scale bar A, B and C: 500 μm. Scale bar D, E and F: 100 μm. H&E, hematoxylin and eosin; LVI, lymphovascular invasion; sTILs, stromal tumor-infiltrating lymphocytes.