This result indicated the implication of 9p21.3 in the myxofibrosarcoma progression, in which MTAP and CDKN2A/CDKN2B were homozygously deleted in 4 and 4 samples and hemizygously deleted in 3 and 3 samples, respectively (Table S2). Here, CDKN2A is linked to myxofibrosarcoma.