Fig. 3From: Simultaneous 18F-FDG PET/MR metabolic and structural changes in visual snow syndrome and diagnostic useDifferences in brain grey matter volume GMV (voxel-based morphometry, VBM) and glucose metabolism (PET) between patients with visual snow syndrome (VSS) and controls (CON). Surface rendering showing brain regions with increased grey matter volume (yellow), increased glucose metabolism (purple) (pFWE < 0.05) and decreased glucose metabolism (blue; puncorrected < 0.001) in VSS compared to CONBack to article page