Frontotemporal Dementia (FTD) or frontotemporal lobar dementia (FTLD) is a family of disorders that includes Pick's disease, corticobasal degeneration, frontotemporal dementia with motor neuron disease (FTD/MND), ALS dementia, frontotemporal dementia with Parkinsonism-17 (FTDA-17), progressive supranuclear palsy, primary progressive aphasia, semantic dementia, and progressive nonfluent aphasia (PNFA). The main symptoms of these disorders, and the ways in which they progress, can differ markedly.
