Evolving biliary atresia with cytomegalovirus.

Multiple studies have been conducted to demonstrate the role of viruses in causing biliary atresia. Although cytomegalovirus (CMV) is known to cause intrahepatic bile duct destruction, its role in biliary atresia is not proven. We report two cases of CMV infection, initially presenting with intrahepatic cholestasis, who subsequently developed biliary atresia.