Autoimmune pancreatitis (AIP) is a type of chronic pancreatitis that can be difficult to distinguish from pancreatic carcinoma. There are two categories of AIP: Type 1 and Type 2, each with distinct clinical profiles. Type 1 AIP is regarded as a manifestation of IgG4-related disease. Type 2 AIP is not associated with systemic disease, and relapses do not occur. Patients ..