This is a case report of severe neurological complications following l
umbar radiculography with the non-ionic x-ray contrast agent Iopamidol
. The complication, which consisted of serious mnestic disturbances an
d various neurological deficits including hemiparesis, was due to intr
acerebral vascular spasms, demonstrated by cerebral angiography, and T
CD followed by multiple cerebral infarctions, demonstrated by MRI. A p
ossible causal relationship between the cerebral vascular spasm and in
trathecal administration of Iopamidol is discussed.