Bone marrow core biopsy. (A) Bone marrow core biopsy 40x. Trabecular bone is appreciated. Bone marrow is hypercellular in appearance. Trilineage hematopoiesis is markedly reduced and difficult to appreciate due to the monomorphic population of immature cells. (B) Bone marrow core biopsy 400x. Monomorphic immature cells make up the majority of the cells appreciated. Cells of erythroid (arrow head) and myeloid lineage (arrow) are appreciable but at decreased percentages from what would be expected, similar to what was seen in the bone marrow aspirate.

Contexts in source publication

Context 1

... Note how large this cell is by comparison. On higher power, cells with characteristic partially condensed chromatin and scant lightly basophilic cytoplasm make up the majority of the cells in Fig. 2B. Granulocyte precursors are seen, such as the eosinophilic band on the upper part of the slide. Erythroid precursors and erythrocytes are present. Fig. 3A shows a bone marrow core biopsy at 40x. Trabecular bone is appreciated. Bone marrow is hypercellular in appearance with essentially 100% cellularity. Trilineage hematopoiesis is markedly reduced and difficult to appreciate due to the monomorphic population of immature cells. In Fig. 3B, monomorphic immature cells make up the majority ...

Context 2

... the slide. Erythroid precursors and erythrocytes are present. Fig. 3A shows a bone marrow core biopsy at 40x. Trabecular bone is appreciated. Bone marrow is hypercellular in appearance with essentially 100% cellularity. Trilineage hematopoiesis is markedly reduced and difficult to appreciate due to the monomorphic population of immature cells. In Fig. 3B, monomorphic immature cells make up the majority of the cells appreciated. Cells of erythroid and myeloid lineage are appreciable but at decreased percentages from what would be expected, similar to what was seen in the bone marrow aspirate. In summary, the bone marrow aspirate and core biopsy both show a predominance of immature ...