NHL accounts for 80–85% of lymphoma, including B-cell NHLs (B-NHLs) expressing CD20 or CD19, T-cell NHLs (T-NHLs) expressing CD3, CD4, or CD8, and natural killer (NK)/T-cell NHLs expressing CD56. This evidence concerns the gene CD8A and T-cell non-Hodgkin lymphoma.