GFAP and diffuse large B-cell lymphoma: Two proteins including glial fibrillary acidic protein (P14136, GFAP) and zeta chain of T‐cell receptor‐associated protein kinase 70 (P43403, ZAP70) exhibited high AUC values (Fig. 6A) to differentiate eDLBCL and PCNSL subtypes of DLBCL.