[Gas-containing hepatic abscess from an unusual etiology]

Pyogenic hepatic abscesses used to be caused by an abdominal infection. Cholangitis due to stones is the commonest cause, followed by diverticulitis or appendicitis. Most patients presenting with pyogenic liver abscesses have a polymicrobial infection usually with Gram negative aerobic and anaerobic organisms. Escherichia coli or Klebsiella pneumoniae are frequently implicated but they do not usually produce gas into the abscesses. We comment a case of a gas-containing liver abscess after an acute pancreatitis without any risk factor associated.