Multicolor confocal imaging analysis confirmed the prominent expansion of a remodeled PDPN+ (CD31–) FRC network that coexpressed the myofibroblast marker SMA+ in an independent cohort of whole DLBCL-LNs in comparison with rLNs (Supplemental Figure 1, C–E). This evidence concerns the gene PECAM1 and diffuse large B-cell lymphoma.