Thalassemia

**Definition:** A group of hereditary hemolytic anemias in which there is decreased synthesis of one or more hemoglobin polypeptide chains. There are several genetic types with clinical pictures ranging from barely detectable hematologic abnormality to severe and fatal anemia.

**Tree numbers:** - C15.378.050.141.150.875 - C15.378.420.826 - C16.320.070.875 - C16.320.365.826

**Synonyms:** - Thalassemias