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Fig. 1.

Bone marrow finding of PCs rimming around a lymphocyte aggregate. (A) The lymphocytic aggregates show a germinal center (H&E stain, ×400). PCs form a rim around the lymphocytic collection detected by immunohistochemistry of (B) CD138, (C) κ, and (D) λ.

Abbreviations: H&E, hematoxylin and eosin; PC, plasma cell.

Ann Lab Med 2019;39:561~565 https://doi.org/10.3343/alm.2019.39.6.561

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