<prompt> Extrapyramidal symptoms are seen in all EXCEPT:Paralysis agitansCarbon monoxide poisoningCerebrovascular accidentMultiple sclerosis  <response>: Answer is D Multiple sclerosis: options other than multiple sclerosis are mentioned as causes of extrapyramidal syndrome. Classification of extrapyramidal disorders : Akinetic rigid syndromes Idiopathic Parkinsons disease Secondary Parkinsons disease Drugs : Phenothiazines, haloperidol, pimozide, metoclocpramide, reserpine, lithium. Toxins : Manganese 1-methyl 4-phenyl tetrahydropyridine MPTP, carbondisulphide Hypoxia : Carbonmonooxide, cynaide Viral : Japanese B Encephalitis, C-J Disease, SSPE Vascular : Athrosclerosis Metabolic : Wilsons disease, hypoparathyroidism, GM1 gangliosidosis Head Injury : Punch drunk syndrome Brain tumor Parkinsons plus syndromes Progressive supranuclear palsy Multiple system atrophy : olivopontocerebellar atrophy, Shy-Drager syndrome, striato nigral degeneration. Coico basal degeneration Diffuse lewy body disease Familial basal ganglia calcification Huntingtons disorder Juvenile variant 