Recent advances in diagnostic techniques in Caroli's disease.

Preoperative diagnosis of congenital dilatation of the intrahepatic bile ducts (Caroli's disease) is difficult. The best techniques for this diagnosis are endoscopic retrograde cholangiopancreatography, abdominal ultrasonography and computerized tomography. The authors present a case of Caroli's disease diagnosed using ultrasonography and computerized tomography. They discuss the usefulness and the real possibilities of existing techniques in the diagnosis of intra- and extrahepatic bile duct disease.