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(A) H&E-stained section (× 60) from bone marrow showing large cells with plasmablastic differentiation with abundant cytoplasm, eccentrically placed nuclei and prominent nucleoli. (B) H&E-stained section (× 60) from lymph node showing the same large atypical lymphoid cells with plasmablastic features as seen in the bone marrow. (C) Immunohistochemical study showed the atypical lymphoid cells were positive for CD138. Example from bone marrow (× 40) shown here.
