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Anti-smooth muscle antibody



Blood test
Blood test


Anti-smooth muscle antibody

Normal Values:

Normally, there are no antibodies present.


What abnormal results mean:

Many patients with chronic active hepatitis, and some of those with forms of cirrhosis are positive for this test. Anti-smooth muscle antibodies can also be present in infectious mononucleosis. The test also helps distinguish autoimmune hepatitis from systemic lupus erythematosus.




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