It is worth noting that in five of the nine E-MpMs, ELSs were also detected within the tumour nodules and, regardless of their intra- or peritumoural site, some had florid EZH2-labeled germinal centre (GC) B cells, thus indicating their active status (Supplementary Figure S4B and Supplementary Table S3) [24]. The gene discussed is EZH2; the disease is neoplasm.