Figure 1. Bone marrow biopsy. (A) Bone marrow core biopsy at 10× magnification with hematoxylin and eosin staining. Normal cellularity with a predominance of myeloid cells and normal megakaryocytes. (B) Bone marrow aspirate at 20× magnification with hematoxylin and eosin staining. (C) Bone marrow core biopsy with magnification 40× with ecadherin staning. The ecadherin immunostain highlights small erythroid islands in the bone marrow core biopsy, overall decreased in number. (D) Bone marrow aspirate smear magnification 40×. This smear demonstrates predominance of myeloid. (E) Bone marrow aspirate smear magnification 100×. This smear demonstrates predominance of myeloid maturation without dysplasia and only rare erythroid precursors, consistent with erythroid hypoplasia. (F) Bone marrow aspirate smear magnification 100×. This smear demonstrates predominance of myeloid maturation without dysplasia.