Among the inhibitory killer cell immunoglobulin-like receptor (KIR) and immunosuppressive checkpoint genes, we observed high expression of KIR2DL4, intermediate levels of NKG2A (KLRC1), and notable reduction of CD96 in the tumor-infiltrating iNK cells, along with negligible expression of other checkpoint markers. Here, KIR2DL4 is linked to neoplasm.