Hepatic abscess due to transhepatic biliary endoprosthesis placement.

The authors present a patient with malignant biliary obstruction due to carcinoma of the pancreas, who developed a large pyogenic hepatic abscess after placement of a transhepatic biliary endoprosthesis. The hepatic abscess was suggested by the finding of a gas-filled defect in the right upper quadrant of the abdomen on chest x-ray and confirmed by computerized tomography of the abdomen.