TET2 and myelodysplastic syndrome: After excluding confirmed SNPs (P29R [rs12498609], V218M [rs6843141], P363L [rs17253672], G355D [rs61744960], H1778R [rs62621450], I1762V [rs2454206] and L1721W [rs34402524]), TET2 mutations were observed in 8/19 (42 %) patients with myeloid neoplasms [4/10 (40 %) MDS and 4/9 (44 %) AML], including six missense (E709K, Y867H, H924R, S1109P, P1723S and H1868L) and three stop codon (E1073X, S1516X and S1518X) mutations (Fig. 1).