Figure 3. PD-L1 positivity in lymphocytes (IHC X400). (A) Tumor cells showing membranous positivity for PD-L1. Also seen are tumor-infiltrating lymphocytes, which are positive for PD-L1. (B) PD-L1 positive lymphocytes were seen scattered in the surrounding stroma.
PD-L1: Programmed death-ligand 1; IHC: Immunohistochemistry.
