BCL2 and diffuse large B-cell lymphoma: Various BCL2 mutations occur and are noted in various DLBCL subtypes, such as the t(14;18)(q32;q21) translocation seen in 34%–44% of GCB DLBCL (Iqbal et al., 2004; Visco et al., 2013; Ennishi et al., 2017).