BCL2 and B-cell non-Hodgkin lymphoma: The most recent revision of lymphoid neoplasms by the WHO [7,8] recognized a more aggressive, high-grade B-cell lymphoma subtype with a worse prognosis, the ‘double-hit’/‘triple-hit’ (DH/TH) lymphoma, which is characterized by MYC rearrangements that are associated with BCL2 and/or BCL6 rearrangements.