Aplastic anemia can progress to all except
Pure red cell aplasia (PRCA) is a form of BMF characterized by severe anaemia with reticulocytopenia and reduced erythroid progenitors in the bone marrow. PRCA most commonly is an acquired disorder and immune mediated, and often occurs in association with a wide range of conditions.hence it is totally unrelated to aplastic anemia. emedicine.medscape.com
AML
Myelodysplastic anemia
Pure red cell aplasia
Paroxysmal nocturnal hemoglobinuria
Haematology