Fig. 2From: A case of IgG4-related anterior mediastinal sclerosing disease coexisting with autoimmune pancreatitisPathological 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, 400Ă—), and over 50% of IgG4/IgG-positive plasma cells (immunostaining, 200Ă—) (b). No deviation in kappa chain- and lambda chain-positive plasma cells was noted (c, 200Ă—), and neither keratin-positive thymocytes (d, 40Ă—) nor terminal deoxynucleotidyl transferase-positive lymphocytes (e, 40Ă—) were observed (immunohistochemical staining)Back to article page