Congenital dyserythropoietic anaemia

**Definition:** Congenital dyserythropoietic anaemias (CDA) result from diverse erythropoietic disorders; they lead to the defective production of red blood cells (RBC) and often mild haemolysis that attests to a qualitative defect of these RBC released into the circulation. Three forms of CDA have been characterised: types I, II and III. The shared symptoms include anaemia of variable severity, intermittent jaundice, splenomegaly and hepatomegaly.

**Exclusions:** - Blackfan-Diamond syndrome - Di Guglielmo disease