As the majority of T-DLBCLs represent the ABC/non-GCB phenotype, the frequency of BCL2 and MYC rearrangements is comparable to nodal ABC-DLBCL (about 10% and 15%, respectively), while BCL6 rearrangements seem less common in T-DLBCL (about 40% and 60%, respectively) [44]. This evidence concerns the gene BCL6 and aneurysmal bone cyst.