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. This evidence concerns the gene SLC6A3 and Parkinson disease.