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. 2022 Mar 9;11(6):1500. doi: 10.3390/jcm11061500

Figure 2.

Figure 2

Characterization of tumor immune infiltrate and PD-L1 expression. (A) Representative images of the expression of immune markers for CD20, CD4, CD68 and CD8 by immunohistochemistry in LCC tumors. Score 0: <1%, negative; Score 1: 1–10%, low expression; Score 2: >10%, high expression. Scale bar = 2 µm. No sample had a Score of 0 for CD68; (B) Representative images of the expression of PD-L1 by immunohistochemistry in LCC tumors. Staining ≥1% was considered to represent positivity. Scale bar = 2 µm.