IgG4-Related Hepatic Pseudotumor Masquerading as a Klatskin Tumor

Figure 2

(a–d) Hepatocellular parenchyma with a mixed predominately mononuclear inflammatory infiltrate and reactive fibrosis, with residual bile duct elements present. (c) 400x total magnification; infiltrate is mainly comprised of lymphocytes and plasma cells. (d) The interface of the inflammatory process with background liver tissue. (e) Arrows highlight the residual elastic lamina.

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