BCL6 and diffuse large B-cell lymphoma: Among the 6 cases of HGBLs with MYC and BCL2 and/or BCL6 rearrangements (double-hit HGBLs), 5 cases were undiagnosed for lack of FISH tests, and 1 case was diagnosed as DLBCL with both MYC and BCL6 rearrangements.