[Primary biliary cirrhosis and autoimmune hepatitis overlap syndrome. An early case].

A 21-year old asymptomatic woman had accidental report of increased transaminases. Serologic tests were negative, autoimmune profile was positive for anti-nuclear, antimitochondrial antibodies and rheumatoid factor. Histology of the liver biopsy showed severe necro-inflammatory activity both in biliary epithelium and in intralobular area, suggesting primary biliary cirrhosis/autoimmune hepatitis overlap syndrome.