BCL2 and diffuse large B-cell lymphoma: Double‐hit or triple‐hit B‐cell lymphomas harboring concomitant chromosomal rearrangements involving c‐MYC and BCL2 and/or BCL6 genes with unfavorable prognoses have previously been included in DLBCL, but these are considered to be an independent disease subtype in the latest WHO classification updated in 2016 10.