[Transient hypoplasia of the intrahepatic bile ducts. Clinical and morphologic studies].

Two boys were thriving normally up to the age of three and nine weeks respectively when obstructive cholestasis developed. Liver biopsy revealed paucity of intrahepatic bile ducts. Extrahepatic bile ducts were not occluded. In both cases cholestasis completely disappeared after five and nineteen weeks respectively. Control liver biopsis showed normal numbers of intrahepatic bile ducts. We conclude that paucity of intrahepatic bile ducts may be transient.