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Anti-Smooth Muscle Antibody (ASM)

Test Name

Anti-Smooth Muscle Antibody (ASM)

Also known as

Symptoms | Disorders | Treatments

About test

Used to diagnose when autoimmune hepatitis is suspected. Smooth muscle antibodies are detected in 85% of patients with chronic active hepatitis and in less than 50% of patients with primary biliary cirrhosis. Smooth muscle antibodies are usually negative in extrahepatic biliary obstruction, drug induced liver disease, viral hepatitis and hepatoma.

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