primary progressive aphasia(redirected from Aphasia, primary progressive)
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primary progressive aphasia
a speech disorder seen with certain degenerative brain diseases, consisting of deterioration of speech and language ability over a period of years without significant loss of memory or ability to understand language.
primary progressive aphasiaA subtype of frontotemporal lobar degeneration characterised by reduced speech production, speech errors, and word retrieval difficulties resulting in mutism and an inability to communicate; memory is relatively preserved, at least in the early stages of disease.
pri·mar·y pro·gres·sive a·pha·si·a(PPA) (prī'mar-ē prŏ-gres'iv ă-fāz'ē-ă)
A degenerative disorder of which the early major symptom is an aphasia that increases in severity and (usually) eventually includes dementia.