The most common of these are mutations in genes related to MEN1, death-domain-associated protein (DAXX), α thalassemia/mental retardation syndrome X-linked (ATRX), and the mammalian target of rapamycin (mTOR) pathway, leading to abnormalities in cell growth and differentiation that cause uncontrolled proliferation [17,18]. The gene discussed is MTOR; the disease is thalassemia.