[Computed tomographic control of the conventional x-ray findings in space-occupying lesions of the bony pelvis].

The CT and conventional radiological findings in 30 patients with space-occupying lesions of the pelvic bones were compared. 73% of the tumours diagnosed by CT were shown by conventional means and in 71% their extent was correctly estimated. Lesions at the ilio-sacral junction are not demonstrated as well by conventional methods as those near the hip joint.

[Radiological detection of the Medina worm (Dracunculus medinensis)].

Atypical linear or convoluted calcification in the subcutaneous tissues of patients from tropical areas in Africa and Asia may be caused by D. medinensis. The radiological appearances and differential diagnosis are described.

[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.

[Respiratory distress syndrome of the adult in the computer tomograph].

Pulmonary changes due to the adult respiratory distress syndrome, which are visualized in the roentgenogram as spreading from the hilus to the periphery, often show a distribution in dorsocentral direction in the computer tomogram, a phenomenon which occurs especially during the oedema phase under the influence of gravity. In addition, there are ARDS developments involving the expected spread from the root of the lung, particularly so with patients of advanced age and with septic-toxic diseases. The causes and significance of these differences are discussed.