Table 5.

A proposal of revised diagnostic criteria for autoimmune pancreatitis

Diagnostic Criteria
Criterion I. Pancreatic imaging (essential)
(1) CT: Diffuse enlargement (swelling) of pancreas and (2) ERCP: Diffuse or segmental irregular narrowing of main pancreatic duct
Criterion II. Laboratory findings
(1) elevated levels of IgG and/or IgG4 or (2) detected autoantibodies
Criterion III. Histopathologic findings
Fibrosis and lymphoplasmocytic infiltration
Criterion IV. Association of other postulated autoimmune disease
Definite
I+II+III+IV or I+II +III or I+II or I+III
Probable	Rediagnosed as “definite” if “response to the steroid” is present
I+IV
Possible
I only