IgG4 Cholangiopathy

Figure 1

Histopathology of IgG4-related sclerosing cholangitis. The surgical specimens show diffuse inflammatory cell infiltration with fibrosis involving peribiliary glands (a), obliterative phlebitis (b), and infiltration of many IgG4⁺ plasma cells (c). The liver needle biopsy reveals portal inflammation (d), bile duct damage (e), and IgG4⁺ plasma cells (f).

(a)

(b)

(c)

(d)

(e)

(f)