CD274 and neoplasm: Other papers analyzing the tumor microenvironment of ILC refer to PD-L1 expression [34], with a subset of ILC expressing PD-L1 on tumor cells and harboring PD-L1+ tumor-infiltrating lymphocytes (TIL), but there was no association between higher TIL and PD-L1 labeling with ER status as seen in IBC-NST.