The amendment of the clinical diagnostic criteria in Japan (JPS2011) in response to the proposal of the international consensus of diagnostic criteria (ICDC) for autoimmune pancreatitis

摘要

Autoimmune pancreatitis (AIP), a distinctive type of pancreatitis, is classified to 2 subtypes by the International Consensus of Diagnostic Criteria (ICDC) for ATP1: type 1 related with IgG4 [lympho-plasmacytic sclerosing pancreatitis, (LPSP)], and type 2 with granulocytic epithelial lesion (idiopathic duct-centric pancreatitis). The former one is suspected to be the pancreatic lesions of IgG4-related diseases.2 The patients with both types of AIP should be differed from pancreatic or bile-duct cancer because they often have pancreatic enlargement, mass formation, and obstructive jaundice. However, clinicopathologi-cal features of each one are quite different.