CD40 and primary central nervous system lymphoma: In addition, EVs bearing these molecules were significantly and positively associated with non-CNS lymphoma: PD-L1 (OR = 1.94; 95% CI: 1.01 – 3.72); CD40 (OR = 2.66; 95% CI: 1.12 – 6.35); TNF-RII (OR = 9.64; 95% CI: 2.52 – 36.86); IL-6Rα (OR = 8.34; 95% CI: 1.73 – 40.15).