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Autoimmune Pancreatitis: Etiology, Pathogenesis, Clinical Findings and Treatment. The Japanese Experience
 
Diabetes OD > Journals > JOP > 2005 > Journal Article

(Journal Article): Autoimmune Pancreatitis: Etiology, Pathogenesis, Clinical Findings and Treatment. The Japanese Experience
 
Okazaki K (Division of Gastroenterology, The Third Department of Internal Medicine, Kansai Medical University. Moriguchi, Osaka, Japan, okazaki@takii.kmu.ac.jp )
 
IN: JOP. J Pancreas (Online) 2005; 06(1 Suppl.):89-96

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ABSTRACT: A concept of 'autoimmune pancreatitis' has recently been proposed. Computed tomography, magnetic resonance imaging or ultrasonography can demonstrate the diffusely enlarged pancreas with its so called 'sausage-like' appearance. Hypergammaglobulinemia, increased serum levels of total IgG or IgG4, positive autoantibodies such as antinuclear antibody, anti-lactoferrin antibody, anti-CA-II antibody and rheumatoid factor have often been observed in patients with autoimmune pancreatitis. Microscopic findings have shown fibrotic changes involving infiltration of lymphocytes and plasmacytes, and often obliterative phlebitis in the pancreas. The major lymphocytes infiltrating the zone around the pancreatic duct were T cells producing IFN-g. HLA-DR was also expressed on the pancreatic duct and acinar cells as were lymphocytes. It is important to make the diagnosis of a diffusely enlarged pancreas based on clinical laboratory findings and pancreatic imaging such as narrowing pancreatogram. Laboratory data, pancreatic images and diabetes mellitus in most patients improved after steroid treatment.In conclusion, autoimmune pancreatitis appears to be a unique clinical entity.

TYPE OF PUBLICATION: Conference Report



 
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