Intratumor spatial heterogeneity in programmed death-ligand 1 (PD-L1) protein expression in early-stage breast cancer.
Adriana Matutino KahnReza GolestaniMalini HarigopalLajos PusztaiPublished in: Breast cancer research and treatment (2023)
These results indicate that the overall 84% concordance is driven by concordant negative results. In PD-L1 positive cancers, within-tumor heterogeneity in PD-L1 expression exists.