Tumor cells were positive for CD3, CD8 (72.7%; Figure 2G), CD56 (Figure 2H), CD103 (60%), granzyme B (81.8%; Figure 2I), and TIA-1 (66.7%), while negative for CD20, CD10, PD-1, ALK, and EBER ISH. The gene discussed is CD8A; the disease is neoplasm.