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Fig. 3 | Surgical Case Reports

Fig. 3

From: Isolated middle mediastinal mass associated with immunoglobulin G4-related disease

Fig. 3

Pathological findings of the mediastinal mass. a Hematoxylin and eosin stain showed a fibrosis with plasma cell infiltration (× 40). b Immunohistochemical stain of IgG showed that IgG plasma cell infiltration was confirmed (× 200). c Immunohistochemical stain of IgG4 showed that IgG4-positive plasma cells were ascertained and the IgG4/IgG cell ratio was ≥ 40% (× 200). d Elastica van Gieson stain showed that an obliterative phlebitis was detected (× 200). IgG Immunoglobulin G

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