Spontaneous perforation of the extrahepatic biliary tract.

Spontaneous perforation of the extra-hepatic biliary tract presenting with pseudocyst is rare. We report the case of a two-month old infant who presented to us with increasing jaundice and progressive loss of weight. Ultrasonography, magnetic resonance cholangiopancreatography and hepatobiliary iminodiacetic acid scan revealed features of obstructed choledochal cyst. Laparotomy revealed a small, walled-offcollection of bile near the confluence of the cystic and common bile ducts. Distal obstruction was excluded and biliary tract drainage was successful in treating the infant.