PMC7155860_01
Bone marrow slide. Bone marrow aspirate showing increased mature plasma cells (14.8% marrow differential) with low N/C ratio, clumped chromatin, eccentric nuclei, inconspicuous nucleoli, and prominent perinuclear huff. Normal maturation of myeloid precursors is seen throughout with appropriate folding and granulation. Marked decrease of erythroid precursors is noted with complete absence in this field (M/E ratio 15.9/1.0).
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F1
Bone marrow aspirate showed 14.8% clonal plasma cells (Fig. 1).