| Bone marrow exam | Patient 1 | Patient 2 |
|---|---|---|
| Bone marrow aspirate smear | Normochromic anemia | Normochromic anemia |
| Mildly reduced WBC count | Normal WBC count | |
| Normal platelet count | Normal platelet count | |
| Bone marrow aspiration | Average of nucleated cell count | Average of nucleated cell count |
| Severely reduced erythroid lineage | Undetected erythroid lineage | |
| Mildly reduced myeloid, and monocytic linage | Normal myeloid, monocytic, and megakaryocytic lineage | |
| Normal megakaryocytic lineage | ||
| Conclusion: Pure red cell aplasia | Conclusion: Pure red cell aplasia |