 Double-hit (DH) lymphomas with MYC and either BCL2 (DH-BCL2/MYC) or BCL6 (DH-BCL6/MYC) rearrangements are considered very aggressive, many of which are now included in the category B-cell lymphoma, unclassifiable, with features intermediate between diffuse large B-cell lymphoma (DLBCL) and Burkitt lymphoma (BL) (DLBCL/BL).     ///    "However, data describing the DH cases are largely based on DH-BCL2/MYC cases. "    ///    "Unlike DH-BCL2/MYC lymphomas, however, they are more likely to be CD10(-) but IRF4/MUM-1(+) (P=0.03) and, more like BL, only infrequently express BCL2 (P<0.001), and are cytogenetically less complex (P<0.04).. "