<unk>  steatosis<unk>  as seen on CT Ultrasound showing diffuse increased echogenicity of the<unk> . Flow chart for diagnosis ‡ Criteria for nonalcoholic<unk> : consumption of ethanol less than 20 g/day for women and 30 g/day for men Most individuals are asymptomatic and are usually discovered incidentally because of abnormal<unk>  function tests or hepatomegaly noted in unrelated medical conditions. Elevated<unk>  enzymes are found in 50% of patients with simple steatosis. The serum alanine transaminase (ALT) level usually is greater than the aspartate transaminase (AST) level in the nonalcoholic variant and the opposite in alcoholic<unk>  (AST:ALT more than 2:1). Simple blood test may help to determine the magnitude of the disease by assessing the degree of<unk>  fibrosis. For example, AST-to-platelets ratio index (APRI score) and several other score, calculated from the results of blood test, can detect the degree of<unk>  fibrosis and predict the future formation of<unk>  cancer. Imaging studies are often obtained during the evaluation process. Ultrasonography reveals a "bright"<unk>  with increased echogenicity. Medical imaging can aid in diagnosis of fatty<unk> ; fatty<unk> s have lower density than spleens on computed tomography (CT), and fat appears bright in T1-weighted magnetic resonance images (MRIs). Magnetic resonance elastography, a variant of magnetic resonance imaging, is investigated as a non-invasive method to diagnose fibrosis progression. Histological diagnosis by<unk>  biopsy is the most accurate measure of fibrosis and<unk>  fat progression as of 2018. Conventional imaging methods, such as ultrasound, CT and MRI, are not specific enough to detect<unk>  unless fat occupies at least 30% of the<unk>  volume.
Fatty liver disease
Wilson's disease
Alcoholic liver disease
Viral hepatitis
Alcoholic hepatitis
Primary sclerosing cholangitis
Non-alcoholic fatty liver disease
Autoimmune hepatitis