Thrombocytopenia 2 (THC2) is a rare inherited thrombocytopenia, typically associated with mutations in the 5′-untranslated region (5′-UTR) of ankyrin repeat domain-containing protein 26 (ANKRD26) (Pippucci et al., 2011). This evidence concerns the gene ANKRD26 and hereditary thrombocytopenia with normal platelets.