A 48-year-old man was admitted to our hospital with jaundice and systemic l
ymphadenopathy. Cholangiographic findings and liver histology disclosed the
presence of sclerosing cholangitis. The patient also had a marked polyclon
al increase in IgG levels. The cholangiographic findings, the systemic lymp
hadenopathy, and the increase in IgG levels resolved completely after treat
ment with prednisolone. This case suggests that there is an association bet
ween sclerosing cholangitis and immunologic abnormalities, and that cortico
steroid treatment is useful for this disorder.