Fig. 1From: Extranodal diffuse large B-cell lymphoma with monoclonal gammopathy: an aggressive and primary refractory disease responding to an immunomodulatory agentDiffuse large B-cell lymphoma (DLBCL) in lymph node biopsy. Immunohistochemistry revealed IgG staining in the cytoplasm of some neoplastic cells (IgG stain; original magnification, ×200). Absence of CD38 expression in neoplastic cells and a positive staining in intermingled plasma cells (original magnification, ×400). Absence of CD138 stain in neoplastic cells (original magnification, ×400)Back to article page