Subcoical dementia is seen in all except ?
Parkinsonism
Alzheimer's disease
Wilson's disease
Huntingtons chorea
Ans.B. Alzheimer's diseaseSubcoical dementia is seen in parkinsonism, Huntington's disease, wilson's disease, progressive supranuclear palsy, idiopathic basal ganglion calcification (Fahr's disease), thalamic lesions, multiple sclerosis, HIV associated dementia and multisYstem atroPhY.Alzheimer's disease causes coical dementia.