18F-FDG PET/CT Metabolic Patterns in Clinically Probable Seronegative Autoimmune Encephalitis with Normal MRI Findings: A Retrospective Observational Study.
Seronegative autoimmune encephalitis (AIE) poses a significant diagnostic challenge because of the absence of identifiable neuronal antibodies and frequently normal structural neuroimaging. 18F-FDG PET/CT has emerged as a sensitive functional imaging modality for detecting metabolic abnormalities in such patients. We c...