<prompt> Antimitochondrial antibodies are found in 90 of patients withPrimary biliary cirrhosisChronic active hepatitisSeminomaChoriocarcinoma  <response>: The most characteristic immunologic abnormality associated with primary biliary cirrhosis is the presence of antimitochondrial antibodies, which are found in 90 of affected individuals.This antibody is predominantly IgG. Antimitochondrial antibodies also can be detected in persons with other liver diseases but with a much lower frequency less than 10 and usually in low titer. 