PMC6495597_01
18F-fluorodeoxy glucose-positron-emission tomography showing hypometabolism in the occipital lobe. The darker color density in the frontal lobe indicates normal glucose metabolism, and in contrast, the occipital lobe is lighter, indicating hypometabolism. Used with permission from Barrow Neurological Institute, Phoenix, Arizona.
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F1
Because of neurologic deficit progression, an 18F-fluorodeoxyglucose-positron-emission tomography (PET) brain scan was performed; it showed occipital lobe hypometabolism consistent with DLB (Figure 1).