Image 1.

Morphologic abnormalities identified in the bone marrow of patients with Fanconi anemia. A, Rare erythroid precursor with irregular nucleus in non–myelodysplastic syndrome (MDS). B, Rare hypogranular neutrophil and rare megakaryocyte with nonlobated nucleus in borderline MDS. C, Pseudo–Pelger-Huët neutrophil and megaloblastic erythroid precursor with irregular nucleus in refractory cytopenia with multilineage dysplasia (RCMD). D, Numerous small bilobed megakaryocytes in RCMD. E, Increased ringed sideroblasts in refractory anemia with ringed sideroblasts. F, Increased blasts in refractory anemia with excess blasts-1 (A, B, C, E, and F, Wright-Giemsa, ×2,000; D, H&E, ×1,000).