BCL6 and aneurysmal bone cyst: In comparison, CXCR4+ ABC-DLBCLs compared to CXCR4− ABC-DLBCLs had a higher percentage of patients with a high Ki-67 index, p53, Myc, Bcl-2, PI3K expression and lower occurrence of BCL6 translocations and nuclear p50 expression (Table 2).