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Fig. 2 | Surgical Case Reports

Fig. 2

From: A case of IgG4-related anterior mediastinal sclerosing disease coexisting with autoimmune pancreatitis

Fig. 2

Pathological findings. A macroscopic view of the resected tumor, which is a lobulated, well-defined, white solid mass with one section (a). Histopathological findings of the specimen showed dense lymphoplasmacytic infiltration with sclerotic stroma (hematoxylin and eosin staining, 400×), and over 50% of IgG4/IgG-positive plasma cells (immunostaining, 200×) (b). No deviation in kappa chain- and lambda chain-positive plasma cells was noted (c, 200×), and neither keratin-positive thymocytes (d, 40×) nor terminal deoxynucleotidyl transferase-positive lymphocytes (e, 40×) were observed (immunohistochemical staining)

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