Abstract
In this issue, Sakurai et al. report on relevant findings for the clinical diagnosis of argyrophilic grain disease (AGD). Their study describes a characteristic atrophy distribution restricted to the limbic lobes, namely the ambient gyrus, in AGD versus Alzheimer's disease (AD), in pathologically confirmed patients using magnetic resonance imaging by voxel- and surface-based morphometry. Here, we discuss the possibility of employing functional or molecular brain imaging to further improvement of diagnosis of AGD. Additional research is required to elucidate the contributions of comorbid AD and transactive response DNA-binding protein 43 kDa pathologies in patients with AGD.
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