Table 2.
Diagnosis of type 1 AIP | |||
Diagnosis |
Cardinal feature |
Imaging evidence |
Collateral evidence |
Definitive type 1 | Histology | Typical/inderminate | Confirmed LPSP |
Imaging | Typical Inderminate | Any level 1/2 ≥ 2 level 1 | |
Steroid response | Indeterminate | Level 1 S/OOI and Rt OR Level 1 D and level 2 S/OOI/H and Rt | |
Probable type 1 | Indeterminate | Level 2 S/OOI/H and Rt |
LPSP: Lymphoplasmacytic sclerosing pancreatitis; AIP: Autoimmune pancreatitis; S: Serology; OOI: Other organ involvement; Rt: Response to steroid therapy; H: Histology