BCL2 and high grade B-cell lymphoma: In the fifth edition of the World Health Organization Classification of Haematolymphoid Tumours: Lymphoid Neoplasms [45], an algorithm to diagnose the different entities is shown, including DLBCL NOS, Burkitt lymphoma, HGBL NOS, HGBL-11q, and DLBCL/HGBL-MYC/BCL2.