anti-smooth muscle antibody (ASMA)

Etiology

• chronic active hepatitis, including autoimmune hepatitis*
• hepatic cirrhosis
• infectious mononucleosis

* useful in distinguishing autoimmune hepatitis from systemic lupus erythematosus

Notes

• distinguish from anti-Sm antibody

More general terms

• autoantibody

More specific terms

• actin IgG Ab in serum/plasma
• anti-actin smooth muscle antibody

Additional terms

• anti-actin antibody
• anti-Sm; anti-Smith Ab
• smooth muscle (unstriated/unstriped/visceral muscle)