Abstract
Two cases of solitary cystic dilatation of the intraheaatic bile duct are reported.
In case 1, operation was performed on account of the suspicion of h epatic tumor, and solitary cystic dilatation of the intrahepatic bile duct containing biliary sludge was identified. In case 2, the patient was admitted because of right hypocondriac pain and jaundice. ERC revealed solitary cystic dilatation communicating with the intrahepatic bile duct.
Solitary cystic dilatation of the intrahepatic bile duct must be differentiated from the other cystic lesions such as simple cyst, cystadenoma and cystadenocarcinoma. In the imaging diagnosis, cholangiography which is able to demonstrate the communication with the intrahepatic bile duct is the most useful modality for differential diagnosis.
