[An early neurological complication of lipiodol cisterno-myelography (author's transl)]

The migration of lipiodol injected sub-occipitally (to obtain a lateral cervical myelogram) into the posterior fossa resulted in a unusual immediate neurological complication involving a major vegetative syndrome, facial hemispasm, excruciating pain in the left ear and, finally, epileptic loss of consciousness. The most likely aetiological hypotheses are acute changes provoked in the arachnoid mater by the substance or an arteria embolism.