Autoimmune pancreatitis has recently been described as a clinical entity that causes chronic pancreatitis. This unique form of chronic pancreatitis is characterized by minimal attacks of abdominal pain, irregular narrowing of the pancreatic duct, and a diffuse enlargement of the pancreas. Autoimmune pancreatitis is associated with hypergammaglobulinemia. In addition, there is histological evidence of lymphoplasmacytic inflammation, the occasional coexistence of other autoimmune diseases, and has a favorable response to glucocorticoid treatment. Recently autoimmune pancreatitis has been increasingly reported particularly in Japan. We report two patients with autoimmune pancreatitis who were treated successfully with corticosteroid therapy.
Anti-Inflammatory Agents/*therapeutic use ; Autoimmune Diseases/*drug therapy/pathology/radiography ; Cholangiopancreatography, Endoscopic Retrograde ; Chronic Disease ; Human ; Male ; Middle Aged ; Pancreatitis/*drug therapy/pathology/radiography ; Prednisolone/*therapeutic use ; Tomography, X-Ray Computed

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Autoimmune Diseases/*diagnosis/drug therapy/immunology ; Azathioprine/therapeutic use ; Common Bile Duct/pathology ; Emphysema ; Fibrosis ; Humans ; Immunoglobulin G/blood ; Immunosuppressive Agents/therapeutic use ; Lung/*radiography ; Male ; Middle Aged ; Pancreatitis/*diagnosis/drug therapy/immunology ; Stents ; Tomography, X-Ray Computed