CD30 expression can also be a hint for the presence of EBV‐infected cells in malignant lymphoproliferations like EBV‐positive mucocutaneous ulcer and EBV‐positive DLBCL, as well as in non‐malignant lymphoproliferations like infectious mononucleosis [71] and chronic EBV‐driven lesions. The gene discussed is TNFRSF8; the disease is diffuse large B-cell lymphoma.