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Axial images of a positron emission tomography (PET) scan performed with 18F-Florbetaben (a,b), 18F-Fluorodeoxyglucose (c,d), and MRI (e,f) in a patient with suspected AD. The images show pathological amyloid burden in the cortex, while a significant reduction in cortical glucose consumption is visible in the left parietal (c, arrow) and temporal lobes (d, arrow). MRI does not show any abnormal findings.
