Primary Progressive Aphasia and Stroke Aphasia.

Continuum : Lifelong Learning in Neurology
Murray Grossman, David Irwin

Abstract

This article summarizes the clinical and anatomic features of the three named variants of primary progressive aphasia (PPA): semantic variant PPA, nonfluent/agrammatic variant PPA, and logopenic variant PPA. Three stroke aphasia syndromes that resemble the PPA variants (Broca aphasia, Wernicke aphasia, and conduction aphasia) are also presented. Semantic variant PPA and Wernicke aphasia are characterized by fluent speech with naming and comprehension difficulty; these syndromes are associated with disease in different portions of the left temporal lobe. Patients with nonfluent/agrammatic variant PPA or Broca aphasia have nonfluent speech with grammatical difficulty; these syndromes are associated with disease centered in the left inferior frontal lobe. Patients with logopenic variant PPA or conduction aphasia have difficulty with repetition and word finding in conversational speech; these syndromes are associated with disease in the left inferior parietal lobe. While PPA and stroke aphasias resemble one another, this article also presents their distinguishing features. Primary progressive and stroke aphasia syndromes interrupt the left perisylvian language network, resulting in identifiable aphasic syndromes.

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Citations

Jun 1, 2018·Continuum : Lifelong Learning in Neurology·David F Tang-Wai, Morris Freedman
Jun 1, 2018·Continuum : Lifelong Learning in Neurology·G Peter Gliebus
May 2, 2020·American Journal of Alzheimer's Disease and Other Dementias·Valeria IsellaClaudio Luzzatti
Sep 18, 2020·Brain : a Journal of Neurology·Ruth U IngramMatthew A Lambon Ralph

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