Beta thalassemia (β-thal) is an inherited hemoglobin disorder characterized by reduced synthesis of the hemoglobin that results in microcytic hypochromic anemia. β-Thalassemia intermedia (TI) is a clinical term of intermediate gravity between the carrier state and β-thalassemia major (β -TM). | Hb Knossos (HBB: > T), β-globin CD 5 (−CT) (HBB: ) and δ-globin CD 59 (−a) (HBD: ) mutations in a Syrian patient with β-thalassemia intermedia