Mutations of CREBBP are frequently found in acute lymphoblastic leukemia or diffuse large B‐cell lymphoma (Mullighan et al, 2011; Pasqualucci et al, 2011), and mutant‐ROBO2 is detected in patient of MDS (Xu et al, 2015). The gene discussed is ROBO2; the disease is myelodysplastic syndrome.