- Patients with a diagnosis of Fanconi's anemia AND Aplastic anemia OR Myelodysplastic syndrome OR Acute leukemia with or without chromosomal anomalies Aplastic anemia as defined by having at least one of the following: Platelet count less than 20,000/mm3 Absolute neutrophil count less than 500/mm3 Hemoglobin less than 8 g/dL