Also known as: High-Grade B-Cell Lymphoma With MYC and BCL2 and/or BCL6 Rearrangements / High Grade B-Cell Lymphoma w/MYC & BCL2 or BCL6 Rearrangements / High Grade B-Cell Lymphoma w/MYC, BCL2 & BCL6 Rearrangements / High Grade B-Cell Lymphoma With MYC and BCL2 or BCL6 Rearrangements / High-grade B-cell lymphoma, with MYC and BCL2 and/or BCL6 rearrangements / High Grade B-Cell Lymphoma With MYC, BCL2 and BCL6 Rearrangements / High Grade B-Cell Lymphoma With MYC, BCL2, and BCL6 Rearrangements / High-Grade B-Cell Lymphoma With MYC, BCL2, and BCL6 Rearrangements / High grade B-cell lymphoma with MYC and BCL2 and/or BCL6 rearrangements (disorder) / High grade B-cell lymphoma with MYC and BCL2 and/or BCL6 rearrangements (morphologic abnormality) / High-grade B-cell lymphoma / High-grade B-cell lymphoma, NOS / High grade B-cell lymphoma (disorder)