[Central pontine myelinolysis disclosed by severe pseudobulbar syndrome without motor involvement of the limbs]. / Myélinolyse centro-pontine révélée par un syndrome pseudo-bulbaire sévère sans atteinte motrice des membres.

A young alcoholic man, receiving diuretics, developed a marked pseudo bulbar syndrome after rapid correction of hyponatremia. Magnetic resonance imaging demonstrated a central pontine myelinolysis, associated with extra-pontine lesions in both thalami. The patient fully recovered, despite persistent radiologic abnormality.

Cerebral venous thrombosis after myelography with iopamidol.

A young man developed intracranial hypertension immediately after myelography with non-ionic water-soluble contrast medium (iopamidol). Cerebral angiography showed extensive cerebral venous thrombosis. The common causes of thrombophlebitis were excluded. A relationship to the contrast medium was strongly suspected, since a similar case has been reported. The rheological properties and haemo-concentration induced by iopamidol could explain this complication.