Autoantibody serology tests looking for AIH and overlap syndromes, including anti nuclear antibody (ANA), anti-smooth muscle antibody (ASMA), anti-liver kidney microsomal (Anti-LKM), and anti-mitochondrial antibody (AMA), were positive for ANA (1/40), ASMA (1/80), and anti-LKM1 (1/80). Here, BTG3 is linked to autoimmune hepatitis.