Pathology of alcoholic liver disease, can it be differentiated from nonalcoholic steatohepatitis?

Table 3 Non-alcoholic fatty liver disease activity score as defined by nonalcoholic steatohepatitis clinical research network[16]

Item	Definition	Score
Steatosis (grade)	Low to medium power evaluation of parenchymal involvement by steatosis
	< 5%	0
	5%-33%	1
	> 33%-66%	2
	> 66%	3
Lobular Inflammation	Overall assessment of all inflammatory foci
	No foci	0
	< 2 foci per 200 × field	1
	2-4 foci per 200 × field	2
	> 4 foci per 200 × field	3
Ballooning
	None	0
	Few balloon cells	1
	Many cells/prominent ballooning	2
Fibrosis stage
	None	0
	Perisinusoidal or periportal	1
	Mild, Zone 3, perisinusoidal	1A
	Moderate, Zone 3, perisinusoidal	1B
	Portal/periportal	1C
	Perisinusoidal and portal/periportal	2
	Bridging fibrosis	3
	Cirrhosis	4