[Computerized tomography differentiation of hepatocellular carcinoma and cholangiocellular tumors]

20 patients with hepatocellular carcinomas (HCC) and 18 patients with tumours of the biliary passages and gallbladder (CAC)) were examined via angio-CT without table increment and via spiral CT. Evaluation of the time-density curve of angio-CT showed more rapid and greater enhancement in case of HCC, whereas CAC were characterised by slower and lesser contrast medium uptake than the surrounding hepatic tissue. Superior differential diagnostic information was obtained via angio-CT, whereas spiral CT yields the best information on extent and number of hepatic tumours.