A Case of Type 1 Autoimmune Pancreatitis

Abstract

Autoimmune pancreatitis (AIP) is a form of pancreatitis with clinical, serological and histological features of an autoimmune process. This is the case of a 32-year-old diabetic man who had been suffering from painless jaundice with pale stools and teacolored urine for 3 months prior to consultation. An endoscopic retrograde cholangiopancreatography revealed a proximal common bile duct stricture, and magnetic resonance cholangiopancreatography showed a bulky pancreatic head. His serum amylase level was mildly raised, and his serum IgG titer was markedly elevated. The serum alkaline phosphatase and conjugated biulirubin levels were high, suggesting an obstructive jaundice. A diagnosis of AIP was made and treated with steroids. He responded well to the steroid therapy.