Different Immunohistochemical Expression of CTLA-4 in Diffuse Large B-Cell Lymphoma and Its Associated Prognostic Factors.

Background: Diffuse large B-cell lymphoma (DLBCL) is classified into germinal center B-cell-like (GCB) and non-GCB subtypes. This study aimed to evaluate the immunohistochemical expression of CTLA-4 in these subtypes and its association with prognostic factors.

Methods: This retrospective study analyzed 50 cases of DLBCL.