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. 2018 Sep 28;97(39):e12197. doi: 10.1097/MD.0000000000012197

Figure 4.

Figure 4

Histological and immunochemical analysis of the biopsies from the abdominal mass. (A) Severe inflammatory infiltration of the mesentery made of eosinophils, lymphocytes and plasma cells (hematoxylin eosin staining, H&E, ×10 magnification). (B) Histological section (H&E,  × 10 magnification) showing a storiform pattern of fibrosis. (C) The vein in the center of the image is obliterated by the infiltration of inflammatory cells (obliterative phlebitis). (D) IgG-immunostaining (×10 magnification) showing IgG positive plasma cells (arrows). (E) IgG4-immunostaining (×10 magnification) showing IgG4 positive plasma cells (arrows).