Types of dementia

What is Primary progressive aphasia?

Primary progressive aphasia is a dementia in which the loss of language is the first and dominant symptom, while memory and reasoning are relatively preserved early on.

There are several variants. One erodes the ability to find and produce words, another the understanding of what words mean, another the fluency of speech. It is usually a form of frontotemporal degeneration, though some cases are caused by Alzheimer's pathology.

It often begins in the fifties or sixties, while the person is working, and speech and language therapy helps most when started early.

Why it matters

It is frequently mistaken for a stroke or for anxiety, and years can pass before anyone names it.

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Related terms

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