Epstein-Barr virus-associated acute cholecystitis in a teenager.

A 14-year-old girl was admitted to hospital with fever, headache, sore throat and abdominal pain. Her blood lymphocyte count and inflammatory markers were raised. Acute Epstein-Barr virus (EBV) infection was suspected and confirmed serologically and by measuring the viral load. On day 7, she developed jaundice with abnormal liver function tests. An abdominal ultrasound scan revealed thickening of the gallbladder and bile duct walls without calculi suggesting acute acalculous cholecystitis. The patient improved slowly with symptomatic treatment, and a repeat ultrasound scan six months later was normal. Acalculous cholecystitis is a rare complication of EBV infection and usually has a good prognosis.