:Mainly imaging dianosis of cholangiocellular carcinoma

概要

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Twenty-three patients with cholangiocellular carcinoma were reviewed mainly as for imaging diagnosis.Abnormality of the biliary enzymes was observed in about 90% of the patients.Tumor-like defect was seen in 90.0% of them by liver scintigraphy.By ultrasonography tumor was visulaized in 76.5% of them and dilated intrahepatic bile ducts, obstructed by the tumor, were observed in 41.2%, which was seemed to be characteristic of this disease. Halo was seen only in 15.4% and the echo pattern of the minute tumors under 3cm in diameter was hypoechoic or isoechoic.By CT scan tumors were visualized mostly as low density area except for some cases showing low and high density areas. Many tumors were not enhanced significantly by contrast agent. The margin of the tumor was not so sharp in many cases.By direct cholangiography tapering type obstruction of the intrahepatic bile duct was seen in 66.7% and by the hepatic angiography encasement of the artery was seen in 75.0% respectively.
財団法人日本消化器病学会の論文