BCL6 and diffuse large B-cell lymphoma: Compared to patients with DLBCL with MYC, BCL2 or BCL6 rearrangements, those with DLBCL with extra copies of the three genes all tended towards lower rates of the expression of the corresponding protein, although no significant differences were found (P = 0.209, P > 0.999, P = 0.255, respectively).