We report the radiological features of intrahepatic bile duct adenoma (BDA)
in three patients. BDA was shown as a small mass located in the peripheral
region of the liver with each imaging modality: a hypervascular mass on an
giography and a mass appearing as early nodular enhancement found dispropor
tionately evident compared with their small size: and distinct delayed or p
rolonged enhancement on CT. BDA should be included in the diseases to be di
fferentiated from hypervascular hepatic tumors.