Fig. 3From: Plasmacytoma in patients with multiple myeloma: morphology and immunohistochemistryThe histology of skull bone plasmacytoma in MM patients. Hematoxylin + eosin staining. Massive infiltration by tumor cells with immature morphology (plasmablasts have the blast structure of the nucleus, large nucleoli, and narrow cytoplasm);. × 400Back to article page