A Case Report of Calcifying Bile Duct Carcinoma of the Hepatic Hilus

Mikio Yasumura, Yutaka Ozeki, Nagaki Matsubara, Hideki Ishida, Tomihiko Kimura

Department of Surgery, National Tosei Hospital

A 55-year-old man was admitted to our hospital because of icterus. Ultrasonography revealed a markedly dilatated intrahepatic bile duct and an irregular tumor of the hepatic hilus. Computed tomography showed a low density area, 30×20 mm in size, with central calcification. Under a diagnosis of bile duct carcinoma of the hepatic hilus occurring from the right intrahepatic bile duct, right trisegmentectomy with caudate lobectomy was carrid out. The tumor specimen was 30×25 mm in size, and was histologically found to be well differentiated tubular adenocarcinoma. Microscopically, there were many psamoma body-like calcifications in the duct. The mechanism of calcification in this case was believed to be dystrophic calcification. Calcification is a rare finding bile duct carcinoma.

Key words
calcification of bile duct carcinoma, right trisegmentectomy of the liver, dystrophic carcification

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Mikio Yasumura Department of Gastroenterological surgery, Aichi Cancer Center
1-1 Kanokoden, Chikusaku, Nagoya, 464 JAPAN

Accepted
September 8, 1993

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