Objective: Posterior cortical atrophy (PCA) or visual variant of Alzheimer's disease (AD) is a progressive neurodegenerative disorder primarily characterized by early deficits in visuospatial abilities. Variability in the initial PCA symptom presentation can make diagnosis challenging and prevalence rates difficult to estimate. Method: Three patients were diagnosed with PCA, following a comprehensive and neurological work up (i.e., imaging, neurological exam, neuropsychological evaluation, visual field testing) at The Neurology Center of Southern California. Core features considered for PCA diagnosis included visual fields defects without an acquired injury (stroke, TBI), apraxia, insidious symptom onset with gradual progression, preserved insight for visual deficits, mood symptoms, and intact recognition memory. In addition, neuroimaging reports suggestive of decreased metabolism in the right temporoparietal regions and hypoperfusion in the visual association cortices were also considered as evidence to support a PCA diagnosis. Results: These cases shared similarities in their neurocognitive profiles. Results from neuropsychological evaluation suggest...

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