ZFP36L2 and leukemia: One patient (SPFQ::ZFP36L2-positive) was not investigated for the fusion gene DNA sequence, because a TR gene rearrangement was used as a target for MRD monitoring (IG/TR rearrangements were specifically screened in this patients, based on the described occurrence of the SPFQ::ZFP36L2 fusion in a leukemia of T-cell origin [20]).