• Juan Carlos Gómez Pastrana, Álvaro Beleño, Mauricio Martinez, Ignacio Cavanagh, and Juan Jimenez.
• Departamento de Medicina Interna, Hospital Universitario Fundación Sanatorio Güemes, Buenos Aires, Argentina. E-mail: juanca9216@hotmail.com.
• Medicina (B Aires). 2024 Jan 1; 84 (3): 534543534-543.

AbstractAutoimmune hepatitis (AIH) is a rare, chronic, inflammatory, and necrotic liver disease characterized by the presence of autoantibodies. Its etiology is unknown. It affects 1 in 200 000 people annually in the US and occurs predominantly in women. Its presentation varies from asymptomatic forms to cirrhosis and acute liver failure and its diagnosis is based on the measurement of autoantibodies, such as antinuclear autoantibodies (ANA), anti-smooth muscle antibodies (ASMA) and anti-liver and kidney microsomal antibodies (anti-LKM). 1). 10% of HAIs do not present antibodies, being called seronegative HAI, requiring a liver biopsy for diagnosis. To date the evidence remains limited and different societies have issued suggestions and recommendations. For this reason, we believe it is relevant to carry out a bibliographic review on the subject, capturing in this document the important information for the understanding and management of this pathology.

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