MYC and Burkitt lymphoma: LMO2 protein was negative in 21 BL studied, had low incidence of expression in the categories associated with MYC rearrangements (HGBL-DH/TH and HGBL-NOS, 27% and 25%, respectively), and was frequently expressed in FL, tDLBCL, and DLBCL (100%, 70%, and 63%, respectively).