Indeed, they detected mutations that may affect sensitivity to novel therapeutics, such as MYD88 and CD79B mutations in a portion of R/R ABC patients, and STAT6 mutations in one third of R/R GCB patients that were associated with activated JAK/STAT signaling, increased phospho-STAT6 protein expression, and increased expression of STAT6 target genes [61]. This evidence concerns the gene STAT6 and aneurysmal bone cyst.