Plasmacytosis mimicking multiple myeloma in angioimmunoblastic T-cell lymphoma: A case report and review of literature

Figure 2 Microscopic evaluation of the lesion. A: A plasma cell and rouleaux formation in peripheral blood smear (magnification, 1000 ×); B: Plasmacytosis with atypical and immature plasma cells in bone marrow smear (magnification, 1000 ×); C: Immunohistochemistry (IHC) results for kappa show positivity in bone marrow (magnification, 200 ×); D: IHC results for lambda show positivity in bone marrow (magnification, 200 ×); E: Small- to medium-sized atypical lymphocytes and follicular dendritic cells with clear cytoplasm and capillaries with enlarged endothelial cells are observed using hematoxylin and eosin staining (magnification, 400 ×); F: IHC results for BCL-6 show positivity (magnification, 100 ×); G: IHC results for CD30 show positivity (magnification, 100 ×); H: IHC results for Ki-67 show positivity (magnification, 100 ×).