Other ITs to consider which may also present with thrombocytopenia with normal platelet size include RUNX1-related thrombocytopenia (RUNX1-RT), ETV6-related thrombocytopenia (ETV6-RT) and CYCS-related thrombocytopenia (CYCS-RT) [3]. The gene discussed is RUNX1; the disease is Thrombocytopenia.