[Malignant mesenchymal liver tumors in the computed tomogram]

The computer tomographic appearances of very rare sarcomas of the liver have been demonstrated in five cases (four haemangiosarcomas, one spindle-cell sarcoma). On the plain scan, all the tumours appeared less dense than the liver parenchyma, but in haemangiosarcomas there was a marked increase in density after the infection of contrast up to an isodense level. During angio-CT, densities equal to intrahepatic vessels were observed. There was only a slight increase in density of the spindle cell sarcoma after contrast injection. The CT appearances have been compared with the pathological and anatomical structure of the tumour.