Table 1.

Diagnostic criteria for AIH

Parameters	Diagnosis of autoimmune hepatitis
Clinical	Female gender Associated with other autoimmune diseases
Autoantibodies	ANA or SMA >1:40 (type 1)
	LKM >1:40 (type 2)
	SLA+ (type 3)
Immunoglobulin	IgG > upper normal limit
Biochemistry	Hepatitic picture (raised AST/ALT levels)
Histology	Plasma cell-rich mononuclear infiltrate
	Interface hepatitis with ballooning and rosetting of periportal hepatocyte; +/− periportal fibrosis
	Lobular necroinflammatory activity
	No bile duct loss or chronic cholestasis
Radiology and ERCP	Normal
Exclusion of other etiology	Exclude viral hepatitis, metabolic, drug, and alcoholic etiology
Response to steroid	Good