[Repeated contrast cisternography after previous use of an oily contrast medium (author's transl)].

Twenty-four control cisternograms were carried out at two to 22 months after lumbar injection of 1.0 to 1.5 ml. Duroliopaque; 20 of these were successfully performed without a fresh lumbar puncture. In most cases, the amount of contrast medium available was less than at the original examination, but was sufficient for definite exclusion of a space-occupying lesion. In four cases only the contrast medium could not be mobilised or manoeuvred into the cisterns and a fresh lumbar puncture was required for further contrast injection.