Table 2.

Histological features of the 12 patients with AS-AIH

Patients	Plasma cell infiltration	Lobular necrosis/inflammation	Interface hepatitis	Hepatic rosette	Bile duct injury	Fibrosis
1	PC1	L1	a	a	a	0
2	PC1	L1	a	a	a	0
3	PC1	L2	a	a	a	0
4	PC1	L2	a	a	p	0
5	PC1,2	L3	p	a	p	0
6	PC1	a	a	a	a	0
7	PC1	L1	a	a	a	0
8	PC1	L1	a	a	a	0
9	PC1,2	L1	p	p	p	0
10	PC1,2	L3	p	a	a	0
11	PC1,2	L1	a	p	p	0
12	PC1	L4	a	a	a	0

PC1, lobular area; PC2, portal area

L1, centrilobular necrosis; L2 spotty necrosis; L3 bridging necrosis; L4 massive necrosis

a, absent; p, present

Fibrosis was assessed with the Batts-Ludwig scoring system (F0-4)