ANKRD26 and Thrombocytopenia: Whole exome sequencing of 3 family members (I3, II8, and III5) indicated that the pathogenic mutation of thrombocytopenia was c.-128G > T within the 5′ UTR of ANKRD26 (NM_014915), which has been proven to be the cause of THC2 in a family of Finnish origin (Averina et al., 2017).