1999 Volume 13 Issue 4 Pages 349-353
A case of localized inflammatory biliary stenosis is reported. The present case is clinically similar to bile duct cancer and histologically identical to localized primary sclerotic cholangitis. A 75 year-old man was admitted to our hospital with asymptomatic dilatation of the intrahepatic bile duct. US and CT revealed a tumor at the hepatic hilus. ERC showed smooth narrowing and obstruction of the right hepatic duct. With a diagnosis of bile duct cancer at the hepatic hilus, right hepatic lobectomy with the resection of the caudate lobe was performed. On cut surface of the resected specimen, a clear-margined round tumor,1.5cm in diameter, existed in the hepatic hilus. Histopathologically, no malignancy was confirmed, and infiltration of inflammatory cells mainly composed of lymphocytes and plasmacytes and proliferation of fibrosis were demonstrated in the wall and the neighboring area of the bile duct. We are considering that the etiology of this case was inflammatory pseudotumor of the liver caused by non-specific cholangitis due to chronic cholecystitis.
