Alcoholic hepatitis vs NAFLD/NASH
How to tell Alcoholic hepatitis and NAFLD/NASH apart when a board question makes them look alike.
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AST to ALT ratio above 2 with recent heavy alcohol use is the fastest discriminator for alcoholic hepatitis.
Side by side
Recent heavy alcohol intake with jaundice and AST to ALT ratio above 2 strongly suggests alcoholic hepatitis.
Metabolic syndrome with chronic mild aminotransferase elevation and imaging steatosis suggests NAFLD or NASH.
Alcohol-related hepatocellular injury and inflammatory cytokine activation produce acute steatohepatitis and cholestatic jaundice.
Insulin resistance and lipid accumulation drive steatosis with variable hepatocyte inflammation and fibrosis.
Alcoholic hepatitis commonly shows AST 50 to 400 U/L with AST to ALT ratio above 2, bilirubin above 3 mg/dL, prolonged INR, and Maddrey discriminant function at least 32 indicating severe disease.
NAFLD or NASH usually shows ALT greater than AST in early disease, hepatic steatosis on ultrasound, and fibrosis staging by elastography or biopsy when advanced disease risk is present.
The trap
Both can show fatty liver on imaging, so clinicians may miss severe alcoholic hepatitis severity scoring; jaundice with coagulopathy requires Maddrey and MELD risk assessment to decide corticosteroid candidacy and inpatient care.
The repair move
Next best step: calculate severity with Maddrey discriminant function and MELD, start alcohol cessation support and nutritional therapy with thiamine, and if severe disease without infection or GI bleeding begin prednisolone 40 mg daily for 28 days with day-7 Lille score reassessment; manage NAFLD or NASH primarily with weight loss target of at least 7% to 10% and metabolic risk control.
Try a free question
CoreA 55-year-old man with heavy alcohol use presents with jaundice and right upper quadrant pain. BP 120/70 mm Hg, HR 104/min, temp 37.8 C. Labs: AST 240 U/L, ALT 96 U/L, bilirubin 7.6 mg/dL, INR 1.9. What is the next best step in management?
Show answer and explanation
Answer: A. Calculate severity score and evaluate for severe alcoholic hepatitis treatment. This pattern suggests alcoholic hepatitis with possible severity requiring prognostic scoring and targeted inpatient management.
Why the other choices are tempting
- B. Wrong because delayed follow-up misses potentially life-threatening acute liver inflammation.
- C. Wrong because methotrexate is hepatotoxic and not treatment for alcoholic hepatitis.
- D. Wrong because there is no evidence that gallbladder disease is the primary cause.
- E. Wrong because this is not uncomplicated NAFLD and needs acute severity assessment.
Flashcards
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Which liver enzyme ratio most strongly supports alcoholic hepatitis over NAFLD or NASH?
An AST to ALT ratio above 2 strongly supports alcoholic hepatitis in the right clinical context.
What severity threshold in alcoholic hepatitis suggests possible corticosteroid therapy?
Maddrey discriminant function at least 32 suggests severe alcoholic hepatitis where prednisolone may be considered if no contraindication.
Quick answers
What is the fastest way to tell Alcoholic hepatitis from NAFLD/NASH?
AST to ALT ratio above 2 with recent heavy alcohol use is the fastest discriminator for alcoholic hepatitis.
What is the key clue for Alcoholic hepatitis?
Recent heavy alcohol intake with jaundice and AST to ALT ratio above 2 strongly suggests alcoholic hepatitis.
What is the key clue for NAFLD/NASH?
Metabolic syndrome with chronic mild aminotransferase elevation and imaging steatosis suggests NAFLD or NASH.
What is the common trap with Alcoholic hepatitis vs NAFLD/NASH?
Both can show fatty liver on imaging, so clinicians may miss severe alcoholic hepatitis severity scoring; jaundice with coagulopathy requires Maddrey and MELD risk assessment to decide corticosteroid candidacy and inpatient care.