Autoimmune pancreatitis: pancreatic and extrapancreatic imaging findings.

OBJECTIVE The purpose of this article is to discuss the systemic nature of autoimmune pancreatitis and its various pancreatic and extrapancreatic imaging findings. CONCLUSION Autoimmune pancreatitis is a systemic disease with a wide range of pancreatic and extrapancreatic imaging findings. These findings can mimic those of other diseases in the pancreas or other organs and therefore are commonly misdiagnosed and mistreated. It is important for radiologists to understand both the pancreatic and extrapancreatic imaging findings of autoimmune pancreatitis to make accurate and timely diagnoses.