[ case of autoimmune pancreatitis with various extrapancreatic fibrosclerosis followed by malignant diseases].

We experienced a rare case of autoimmune pancreatitis with sclerosing cholangitis, retroperitoneal fibrosis and interstitial pneumonia. The patient was a 68-year old man and had abnormal liver function with jaundice. We performed endoscopic retrograde cholangiopancreatography (ERCP) and needle biopsy of the liver and pancreas. We obtained histological findings such as dense infiltration of plasma cells and lymphocytes and remarkable fibrosis and diagnosed AIP. The patient received treatment by prednisolone and thereafter developed bladder cancer and gastric cancer. He has been followed up for 4.5 years with no recurrence.