MYC and Burkitt lymphoma: These cases included 10 cases without c-myc translocation (all DLBCL cases) that contained from 50→90% EBI3-positive tumoral cells as determined by immunohistochemistry, and 6 cases with c-myc translocation (5 BL/DLBCL cases and one DLBCL case) that contained <5% EBI3-positive tumoral cells.