Introduction
Adult-onset Still’s disease (AOSD) is a systemic inflammatory disorder
of unknown etiology that usually affects young
adults.1 Spiking fever, arthritis, and evanescent rash
are commonly observed during the course of the disease. Other frequently
observed clinical features include sore throat, hepatosplenomegaly,
lymphadenopathy, and serositis.2 Adult-onset Still’s
disease is usually complicated by liver dysfunction.3However, cases of autoimmune hepatitis (AIH) complicated by AOSD are
rare, and discerning the cause of liver dysfunction as AOSD or AIH is
difficult. This was a very rare case that could be followed up from
acute onset to recurrence of AIH complicated by AOSD. Herein, we report
a case of AIH complicated by AOSD that was successfully diagnosed by a
liver biopsy.