Postmyelographic abducent nerve palsy in association with the contrast agent iopamidol.

Lateral rectus palsy is an uncommon event following contrast myelography. We report such a case, which fortunately proved to be transient, and speculate on its aetiology in terms of the anatomy of the sixth cranial nerve and the possible toxic effects of the contrast agent Iopamidol (Isovue; ER Squibb and Sons, Princeton, New Jersey, USA; Niopam, E Merk, U.K.).