MRI and PET images of patient with autoimmune encephalitis show inflammatory changes and areas of hypermetabolism

A. MRI of a patient with autoimmune encephalitis shows inflammatory changes in the temporal lobes bilaterally. B and C. Brain 18F-fluorodeoxyglucose (18F-FDG) positron emission tomography (PET) of a patient with autoimmune encephalitis shows areas of hypermetabolism in the basal ganglia and temporal lobes.