There are three main histological subtypes found at post-mortem: FTLD-tau, FTLD-TDP, and FTLD-FUS. In rare cases, patients with clinical<unk>  were found to have changes consistent with Alzheimer's disease on autopsy. The most severe brain atrophy appears to be associated with behavioral variant<unk> , and corticobasal degeneration. With regard to the genetic defects that have been found, repeat expansion in the C9orf72 gene is considered a major contribution to<unk>  lobar degeneration, although defects in the GRN and MAPT genes are also associated with it.
Frontotemporal dementia
Fatal insomnia
Dementia with Lewy bodies
Lewy body dementias
Vascular dementia
Subcortical dementia
Semantic dementia
Early-onset Alzheimer's disease