MYC and Burkitt lymphoma: It is also well defined that in BL, the MYC partner is almost always an IG partner, whereas in non-BL LBCLs, the MYC partner genes include several non-IG partners in approximately 40% of cases; consequently, a part of MYC rearrangements are undetectable by FISH analysis, and, currently in research, other molecular methods are used [87].