Molecular diagnosis of HAV along with anti-HAV IgG avidity measurement are helpful in case of positive IgM where laboratory evidence of acute hepatitis is absent and there is no epidemiologic link ...

ANA, SMA, or anti-LKM1 ≥ 1:80 in adults and ≥ 1:20 in children; no AMA Hypergammaglobulinemia of any degree ANA, SMA or anti-LKM1 ≥ 1:40 in adults; other autoantibodies Interface hepatitis ...