<unk>  <unk>  or erythroblastopenia refers to a type of aplastic anemia affecting the precursors to red blood<unk> s but usually not to white blood<unk> s. In<unk> , the bone marrow ceases to produce red blood<unk> s. There are multiple etiologies that can cause<unk> . The condition has been first described by Paul Kaznelson in 1922.
Pure red cell aplasia
Paroxysmal cold hemoglobinuria
Paroxysmal nocturnal hemoglobinuria
Hereditary spherocytosis
Hereditary persistence of fetal hemoglobin
Congenital hypoplastic anemia
Twin anemia-polycythemia sequence
Congenital dyserythropoietic anemia