What is characteristic of congenital dyserythropoietic anemia (CDA)?

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Congenital dyserythropoietic anemia (CDA) is a rare genetic disorder that affects the development of red blood cells. The characteristic feature of CDA is ineffective erythropoiesis, which means that the body is not able to produce enough red blood cells despite an increased demand. This leads to anemia, which is the hallmark of the disease. In addition, the bone marrow shows abnormal erythroblasts, including multinuclear erythroblasts. Direct hyperbilirubinemia may also occur due to the increased destruction of abnormal red blood cells. Therefore, both options A and B are correct, and the answer is D.

What Is Characteristic of Congenital Dyserythropoietic Anemia (CDA)