Sixty percent of HIV-positive cases with a diagnosis of DLBCL had a CD4 count ≥ 200 cells/μL. The median full blood count indices among HIV-positive cases were: white blood cell count, 6.43 × 109/L (IQR: 5.030–8.10); haemoglobin, 7.9 (IQR: 6.8–9.00) g/dL; and platelet count, 243.0 (IQR: 191.0–365.0) × 109/L. The gene discussed is CD4; the disease is diffuse large B-cell lymphoma.