A case of transient choreoathetosis with amnesic syndrome after acute monoxide poisoning

We report a case of acute CO poisoning, followed after 9 days by the onset of choreoathetosis in the upper limbs and face, in a 24 year old man. The patient also showed memory disturbances that tended to clear gradually within about six months. CT scan and NMR revealed symmetrical bilateral lesions in the globus pallidus.