EBV Infection Unmasking a Choledochal Cyst in an Infant.

Hepatic involvement is common in acute Epstein-Barr virus (EBV) infection in children. It usually manifests as a transitory elevation of transaminases in up to 80% to 90% of patients, and they normalize by 2 to 6 weeks. A cholestatic pattern with elevated gamma-glutamyl transferase (GT) and alkaline phosphatase (ALP) is common, in up to 60% in young adults.