Non-amnestic Alzheimer disease dementia, logopenic variant (Q96028): Difference between revisions

Clinical variant of Alzheimer disease dementia presenting with predominant language problems, characterised by impairment of single-word retrieval in spontaneous speech and naming, and impaired repetition of sentences. Phonologic errors are usually present, with preservation of single-word comprehension and object knowledge. Episodic memory is proportionally less impaired. Neuroimaging abnormalities are observed, namely left posterior perisylvian or parietal atrophy on magnetic resonance, in association with hypoperfusion or hypometabolism in these same areas on SPECT or FDG-PET, respectively.