However, certain clinical peculiarities suggest specific underlying neuropathologies: (1) oral disinhibition (hyperorality) is more characteristic of FTLD than non-FTLD; (2) hallucinations are suggestive of FTLD-TDP (not limited to C9orf72 mutations); and (3) perseverative or compulsive behaviors are more frequent in FTLD-TDP type B or C. Moreover, Scarioni et al. found ADNC co-occurring in nearly half of FTLD-TDP cases, highlighting the relevance of mixed pathologies affecting the limbic system (Scarioni et al., 2020). Here, C9orf72 is linked to torsades de pointes.