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Primary progressive aphasia MRIs

Coronal T1-weighted magnetic resonance images from primary progressive aphasia patients with agnosia for accents. AA (left), shows asymmetric predominantly left-sided peri-Sylvian atrophy; and PA (right), shows asymmetric, predominantly right-sided anterior and mesial temporal lobe atrophy. (Fletcher PD, Downey LE, Agustus JL, et al. Agnosia for accents in primary progressive aphasia. Neuropsychologia 2013;51(9):1709-15. Creative Commons Attribution, CC BY 4.0 license.)

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