FIGURE. Pretreatment histology of bone marrow biopsies. A, Hematoxylin and eosin stain (Â600) showing mildly hypercellular bone marrow with myeloid hyperplasia, erythroid hypoplasia, and normal megakaryocytes. B, Reticulin stain (Â600) showing moderate reticulin fibrosis (black arrow). C, CD71 stain (Â600) showing decreased erythroid precursors seen with only rare early precursors present. D, CD138 stain (Â200) with increased plasma cells present.
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