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Fig. 4 | Surgical Case Reports

Fig. 4

From: IgG4-related sclerosing mesenteritis causing bowel obstruction: a case report

Fig. 4

Histological examination of tissue specimens. a, b Hematoxylin and eosin staining, showing that the mass was composed of a prominent lymphoid follicles with sclerosis and b fascicular or storiform proliferation of spindle cells with inflammatory cells. c Elastica van Gieson (EVG) staining, showing obliterative phlebitis. d Immunohistochemical staining with anti-IgG4 antibody, showing that numerous IgG4-positive plasma cells were observed (253 per high-powered field (HPF); IgG4/IgG ratio = 50 %)

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