NAFLD (Non-Alcoholic Fatty Liver Disease) Activity Score
Diagnoses steatohepatitis, based on histology, in NAFLD patients.
Use in patients who have had liver biopsy for NAFLD. The score should not be used as a surrogate for NASH diagnosis (see Brunt and Kleiner 2011 for details).
When to Use
1 focus per 200× field+1
2‐4 foci per 200× field+2
>4 foci per 200× field+3
Few balloon cells+1
Many cells/prominent ballooning+2
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