Comparison of 2 distinct variants of t(14;18)-negative follicular lymphoma (FL) common in the pediatric age group: T-FL and PTFL. They differ in histological, immunophenotypic, and genetic features. (H&E, upper left hand corners, original magnification, x100; CD10, CD20, CD79a, and IgD, original magnification, x200; Ki-67, x400) IgD, immunoglobulin D. Figure created, in part, with BioRender.com.