Hidrops fetal no inmune por anemia diseritropoyética congénita

congenital dyserythropoietic anemia is a rare group of heterogeneous disorders characterized by ineffective erythropoiesis, megaloblastic anemia, secondary hemosiderosis and fetal hydrops. we report a case of a 20 week old fetus with hydrops as a consequence of a severe fetal anemia resulting from ineffective erythro-poiesis. when non-immune fetal hydrops is found, it is essential an early etiological diagnosis to give the parents the most appropriate therapeutic options.