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What is Parkinson's disease with dementia?

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People with the nervous system disorder Parkinson's disease get this type of dementia about 50% to 80% of the time. On average, the symptoms of dementia develop about 10 years after a person first gets Parkinson's.

This type is very similar to DLB. They have the same symptoms, and people with both conditions have signs of Lewy bodies in their brains.

From: Types of Dementia WebMD Medical Reference

SOURCES:

Alzheimer's Association: "Types of Dementia," "What Is Alzheimer's?""Wernicke-Korsakoff Syndrome,""Frontotemporal Dementia,""Mixed Dementia Symptoms."

National Institute on Aging: "Alzheimer's Disease,""About Alzheimer's Disease: Symptoms.""Lewy Body Dementia: Information for Patients, Families, and Professionals."

Centers for Disease Control: "Healthy Aging: Alzheimer's Disease."

Grabowski, TJ. Clinical features and diagnosis of Alzheimer's disease. UpToDate. Nov. 20, 2014.

National Institute on Aging: "Lewy Body Dementia: Information for Patients, Families, and Professionals."

McKhann, G. M.Alzheimer's Dementia, May 2011.

UpToDate: "Normal Pressure Hydrocephalus," "Creutzfeldt-Jakob Disease," "Clinical Features and Diagnosis of Dementia with Lewy Bodies," "Frontotemporal Dementia: Clinical Features and Diagnosis," "Wernicke Encephalopathy," "Huntington Disease: Clinical Features and Diagnosis," "Etiology, Clinical Manifestations, and Diagnosis of Vascular Dementia."

Reviewed by Joseph Goldberg on February 11, 2017

SOURCES:

Alzheimer's Association: "Types of Dementia," "What Is Alzheimer's?""Wernicke-Korsakoff Syndrome,""Frontotemporal Dementia,""Mixed Dementia Symptoms."

National Institute on Aging: "Alzheimer's Disease,""About Alzheimer's Disease: Symptoms.""Lewy Body Dementia: Information for Patients, Families, and Professionals."

Centers for Disease Control: "Healthy Aging: Alzheimer's Disease."

Grabowski, TJ. Clinical features and diagnosis of Alzheimer's disease. UpToDate. Nov. 20, 2014.

National Institute on Aging: "Lewy Body Dementia: Information for Patients, Families, and Professionals."

McKhann, G. M.Alzheimer's Dementia, May 2011.

UpToDate: "Normal Pressure Hydrocephalus," "Creutzfeldt-Jakob Disease," "Clinical Features and Diagnosis of Dementia with Lewy Bodies," "Frontotemporal Dementia: Clinical Features and Diagnosis," "Wernicke Encephalopathy," "Huntington Disease: Clinical Features and Diagnosis," "Etiology, Clinical Manifestations, and Diagnosis of Vascular Dementia."

Reviewed by Joseph Goldberg on February 11, 2017

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