Z-score brain surface map of representative cases shows a prominent metabolic reduction on respective gyrus level segment in cingulate gyrus.Top, 46-year-old man (case 4) shows hypometabolism in anterior cingulate gyrus.Middle, 38-year-old woman (case 7) sh... Z-score brain surface map of representative cases shows a prominent metabolic reduction on respective gyrus level segment in cingulate gyrus.Top, 46-year-old man (case 4) shows hypometabolism in anterior cingulate gyrus.Middle, 38-year-old woman (case 7) shows hypometabolism in middle cingulate gyrus. Metabolic reduction shown in the right frontal lobe is the result of cerebral contusion.Bottom, 28-year-old man (case 12) shows hypometabolism in posterior cingulate gyrus with concomitant hypometabolism of lingual gyrus and cuneus. T. Nakashima et al. AJNR Am J Neuroradiol 2007;28:236-242 ©2007 by American Society of Neuroradiology