Immunohistological findings exhibited positivity for CD3, CD8, granzyme B, T-cell intracellular antigen-1 (TIA-1), and beta F1; and negativity for C-gamma M1, CD30, CD56, and Epstein–Barr virus-encoded small RNAs (EBERs), which led to a definitive diagnosis of αβ-type SPTCL. The gene discussed is CD8A; the disease is subcutaneous panniculitis-like T-cell lymphoma.