What is the role of antimitochondrial antibody testing in the workup of biliary obstruction?

Updated: Oct 16, 2019
  • Author: Jennifer Lynn Bonheur, MD; Chief Editor: Vinay Kumar Kapoor, MBBS, MS, FRCS, FAMS  more...
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Answer

The presence of antimitochondrial antibodies, usually in high titers, is indicative of PBC. They are usually absent in patients with mechanical biliary obstruction or PSC.


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