Frontotemporal dementia (FTD or Pick’s disease) is a relatively common but underdiagnosed form of presenile dementia. Estimated prevalence is 20% of dementias and 50% of dementia in patients under age 65. Common presentations are disinhibition with indifference; progressive aphasia; semantic dementia; unexplained falls, vertical gaze palsy, and dysarthria; and dementia with motor neuron disease. Neuroimaging is essential to exclude a slow tumour. Tau mutations are found in some families. Atypical neuroleptics and antidepressants can effectively treat some of the characteristics of FTD.
Key words: frontotemporal dementia, Pick’s disease, primary progressive aphasia, corticobasal degeneration, progressive supranuclear palsy.