Case Report: Diagnostic pitfall and biomarker-guided therapy in CD20-negative Epstein–Barr virus-positive diffuse large B-cell lymphoma
De novo CD20-negative Epstein–Barr virus-positive diffuse large B-cell lymphoma, not otherwise specified (EBV+ DLBCL, NOS), is a rare subtype of DLBCL. CD20 loss complicates both diagnosis and treatment by limiting anti-CD20 antibody use and broadening…