Fig. 2From: Comparison of tumor microenvironment in primary and paired metastatic ER+/HER2- breast cancers: results of a pilot studyTILs in H&E staining. Examples of TILs in the three-categories we used: Low (< 10%), Intermediate (10–50%) and High (≥ 50%). Magnification × 200, × 400Back to article page