TNFAIP3 and diffuse large B-cell lymphoma: In another investigation about the prognostic role of A20 mutation in DLBCL, Paik et al. [34] make a conclusion that A20 deletion was not a poor prognostic factor for DLBCL,but this conclusion need to be carefully interpreted, because in their study, A20 deletion rate was high (23.1%) in GCB-DLBCL and similar to ABC-DLBCL, which was contradictory to previously researches.