We report a case of spontaneous intracranial hypotension that underwent cerebral angiography. The angiogram showed prominence of the veins and venous phase of the angiogram. This is thought to be secondary to decreased intracranial pressure and subsequent dilation of the venous system to attempt to replace the lost intracranial CSF volume. In situations in which the typical clinical presentatio...

Association of deep white matter infarction with chronic communicating hydrocephalus: implications regarding the possible origin of normal pressure hydrocephalus. Idiopathic normal pressure hydroceph-alus may be a " two hit " disease: benign external hydrocephalus in infancy followed by deep white matter ischemia in late adulthood. T he article in this month's American Journal of Neuroradi-olog...

A case of spontaneous intracranial hypotension syndrome is described. Computed tomography showed slit ventricles with tight basal cisterns. Prompt improvement of symptoms was achieved by intramuscular dexamethasone treatment. A follow-up CT scan demonstrated re-expansion of ventricles and basal cisterns.