Abstract Diffuse Large B-Cell Lymphoma (DLBCL) is a highly heterogeneous malignancy whose biological diversity is best captured by modern molecular classifications. The Cell of Origin (COO) system divides tumors into Germinal Center B-cell-like (GCB) BN2, characterized by BCL6 translocations N1, marked by NOTCH1 activation; A53, enriched for TP53 loss EZB, defined by EZH2 mutation, BCL2 rearrangement, Part 1 (Regular Abstracts); 2026 Apr 17-22; San Diego, CA. Philadelphia (PA): AACR; Cancer Res 2026;86(7 Suppl):Abstract nr 7214.
Zipeto et al. (Fri,) studied this question.