Diagnostic finding

Anti-SMA

Autoantibodies directed against cytoskeletal elements of smooth muscle cells, particularly F-actin.

Causes

  • Autoimmune hepatitis type 1 (a key serologic marker)

  • Viral infections: EBV, measles, mumps, viral hepatitis

  • Primary biliary cholangitis

  • Non-alcoholic fatty liver disease

  • Ovarian carcinoma

  • Malignant melanoma

  • Connective tissue diseases

Also known as: Actin antibody, Anti-smooth muscle antibody, ASMA, ASMA test, F-actin antibody

Referencing diagnoses

Note: Lists existing diagnoses in Diagnotize only.