Secondary Dementias

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Secondary Dementias 

Secondary Dementias  

Secondary Dementias

Dementia may occur in patients who have other disorders that primarily affect movement or other functions. 

These cases are often referred to as secondary dementias. 

The relationship between these disorders and the primary dementias is not always clear. For instance, people with advanced Parkinson's disease, which is primarily a movement disorder, sometimes develop symptoms of dementia.

Many Parkinson's patients also have amyloid plaques and neurofibrillary tangles like those found in AD. The two diseases may be linked in a yet-unknown way, or they may simply coexist in some people.

People with Parkinson's and associated dementia sometimes show signs of Lewy body dementia or progressive supranuclear palsy at autopsy, suggesting that these diseases may also overlap with Parkinson's or that Parkinson's is sometimes misdiagnosed.

Other disorders that may include symptoms of dementia include multiple sclerosis; presenile dementia with motor neuron disease, also called ALS dementia; olivopontocerebellar atrophy (OPCA); Wilson's disease; and normal pressure hydrocephalus (NPH).

Source:  Public Domain



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