Post non-ionic contrast myelogram
Sudden onset of seizures ~ 4 hours post lumbar myelogram
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Hyperdense material consistent with radiographic (iodine-based) contrast in the CSF without apparent cerberal parenchymal abnormality although it is difficult to be certain given the overwhelming density of the CSF
Complications following non-ionic myelography are now rare but include seizures, encephalopathy and diffuse cerebral oedema. The presence of contrast in the cerebral CSF post myelography is not infrequent especially following a cervical myelogram.
- http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1681557 , http://www.hindawi.com/journals/rrp/2011/212516