IgG4-sclerosing cholangitis masquerading as cholangiocarcinoma: a case report of an unresolved preoperative diagnosis
BackgroundImmunoglobulin G4-related disease (IgG4-RD) is an immune-mediated chronic fibroinflammatory condition that can affect multiple organ systems. IgG4-related sclerosing cholangitis (IgG4-SC) is its manifestation involving the biliary tract. Due …