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Related Dementias

Many conditions and diseases cause dementia. Alzheimer's is the most common cause. Other causes include brain changes that lead to vascular dementia, Lewy body dementia, and frontotemporal disorders.

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Frontotemporal Disorders

Learn about symptoms, diagnosis, treatment, and caregiving for people with frontotemporal disorders.

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Lewy Body Dementia

Learn about symptoms, diagnosis, treatment, and caregiving for people with Lewy body dementia.

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Other Dementias

Learn about how dementia is diagnosed and about vascular dementia and mixed dementia.


Diagnosing Dementia

Doctors diagnose dementia—including Alzheimer disease, Lewy body dementia, and frontotemporal dementia—with brain scans and other tests.
Doctor studying brain scans

What Are Frontotemporal Disorders?

A type of dementia called FTD tends to strike before age 60 and stems from damage to the brain’s frontal lobe and temporal lobe. Learn more about FTD and brain changes from NIH.
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What Causes Frontotemporal Disorders?

What causes frontotemporal disorders? In most cases, we don’t know. In other cases, gene mutations lead to this early-onset brain disease. Learn more from NIH.
brain scans

What Is Lewy Body Dementia?

What is Lewy body dementia? What are the symptoms? How is it treated? Read about this progressive disease that is one of the most common causes of dementia.
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Diagnoses of Lewy Body Dementia

Did you know Lewy body dementia has two diagnoses? Dementia with Lewy bodies and Parkinson’s disease dementia differ in the order of cognitive and movement symptoms.
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What Causes Lewy Body Dementia?

Learn about causes and risk factors for Lewy body dementia. They include an accumulation of Lewy bodies in the brain, age, Parkinson’s disease, and genetics.
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Symptoms of Lewy Body Dementia

Do you know the symptoms of Lewy body dementia? They may include cognitive and mood changes, Parkinson symptoms, sleep disorders, and hallucinations.
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Diagnosing Lewy Body Dementia

Lewy body dementia is often misdiagnosed as Alzheimer’s or Parkinson’s. See a doctor to find out what’s causing your symptoms and get the right treatment.
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Lewy Body Dementia Research

Research on Lewy body dementia seeks deeper understanding of this brain disease and how it relates to other types of dementia. Learn how to get involved.
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