Autoimmune hepatitis during infliximab therapy for Crohn's disease: a case report.

We present the case of a 60-year-old Caucasian male with Crohn's disease treated with infliximab. Within 14 weeks of treatment induction, an asymptomatic acute hepatitis was detected. Elevated autoantibodies and liver biopsy findings supported the diagnosis of autoimmune hepatitis. No competing aetiologies were present. The hepatitis completely responded to infliximab cessation and administration of corticosteroids. This case is the most compelling to date of an infliximab-induced autoimmune hepatitis. Although the role of liver enzyme monitoring is unclear, an awareness of this adverse effect is important, given the potential for a rapid and complete response to specific treatment.