Abstract
During the last decade, patients with steroid responsive sclerosing cholangitis have been described in a number of case reports and a few cases series. These patients meet diagnostic criteria for primary sclerosing cholangitis (PSC) but seem to have a better prognosis and are often, but not always, associated with autoimmune pancreatitis (AIP). Unlike biliary strictures in PSC, most PSC-like biliary strictures seen in association with AIP respond well to steroids and some have been shown to resolve after immunosuppressive treatment during prolonged follow-up. In addition, steroid-responsive dominant bile duct lesions, sometimes mimicking infiltrating hilar cholangiocarcinoma, without pancreatic abnormalities have also been reported. Here we review the literature on this emerging clinical entity and suggest that this condition of steroid responsive biliary strictures be named Immunoglobulin G4 (IgG4) Associated Cholangitis (IAC). We performed an electronic database search of MEDLINE for case reports and case series of sclerosing cholangitis with pancreatitis and/or pancreatic mass (1960–July 2006). Articles were limited to English and these case reports and cases series were reviewed and all references on the combination of sclerosing cholangitis and pancreatitis as well as IgG4 positive cholangitis without pancreatic involvement not identified by our original search were obtained. Terminology and Definition
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