PMC6343163_01
BMA smear. Normocellular marrow with trilineage hematopoiesis (a). Phagocytosis (blue arrow) by a histiocyte of erythroids and granulocytes (b).
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fig1
The BMA smear revealed a normocellular marrow with trilineage hematopoiesis and the presence of hemophagocytosis (see Figure 1).
BM trephine biopsy. Normocellular marrow with megakaryocytic hyperplasia (small green arrows) in focal loose clusters (a). Reticulin staining showing moderate reticulin fibrosis (small blue arrows) (b).
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fig2
The bone marrow trephine biopsy revealed a normocellular marrow with megakaryocytic hyperplasia with moderate myelofibrosis (WHO MF Grade 2) (see Figure 2).
BM trephine biopsy. Normocellular marrow with trilineage hematopoiesis (a). Reticulin staining showing no significant fibrosis (b).
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fig3
A repeat bone marrow biopsy was done four months after discharge, which revealed normocellular marrow with trilineage hematopoiesis with complete resolution of myelofibrosis and hemophagocytosis (Figure 3).