Immunohistochemically, the tumor cells were strong positive for CD56, CD3ε, TIA1 (Figure 3), and weak positive for LMP1, and negative for CD5, CD8, CD20, CD79a, CgA, Syn, SCLC, CK, EMA, CD99, CD10, TdT, PAX-5, and BCL-6. Here, CD8A is linked to neoplasm.