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. 2016 Apr 26;12(1):111–114. doi: 10.3892/etm.2016.3291

Figure 3.

Figure 3.

Histopathological findings in cervical lymph node biopsy. (A) CD138 immunohistochemical staining (brown) identified plasma cellular infiltration in the cervical lymph node (magnification, ×400). (B) Immunoglobulin G4 (IgG4) immunohistochemical staining (brown) labeled a large number of IgG4-positive plasma cells among the inflammatory infiltrates (magnification, ×400). The ratio of IgG4/IgG cells was >40%, which was much higher compared with the 6% ratio typically observed in normal subjects. Scale bar=50 µm.