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Table 1 Histological and ultrasonographic grading of hepatic steatosis

From: Recent advances in non-invasive diagnosis and medical management of non-alcoholic fatty liver disease in adult

Grading of hepatic steatosis Histological findings Ultrasonographic findings
Grade 0 steatosis Less than 5% of hepatocytes contain fat  
Grade 1 steatosis 6–33% of hepatocytes contain fat Hepatic echogenicity is more than the renal cortex.
Grade 2 steatosis 34–66% of hepatocytes contain fat Liver echogenicity obscures echogenic wall of portal venous branches.
Grade 3 steatosis > 66% of hepatocytes contain fat Diaphragmatic wall and portal venous walls are not visible due to increased hepatic echogenicity.