RNY4 and anaplastic large cell lymphoma: To verify if full-length RNY4 might be responsible for the differential expression detected by small RNA-seq, not validated by RT-PCR specific from RNY4-5′F, we quantified the full-length RNY4 in 12 ALCL and 12 HD plasmatic exosomes by qRT-PCR using primers from Tolkach et al. (63).