SLC6A3 and frontotemporal dementia: In this study, we observed that both the putamen and the caudate were similarly affected in FTD, reflecting a more uniform distribution of dopaminergic loss across the striatum, in contrast to the posterior-to-anterior gradient typically observed in patients with early Parkinson’s disease.32 Some recent case reports have suggested that dopamine transporter levels are decreased, especially in the caudate of patients with FTD.