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FRONTOTEMPORAL DEGENERATION

Yener, Görsev G.; Rosen, Howard J.; Papatriantafyllou, John

CONTINUUM: Lifelong Learning in Neurology: April 2010 - Volume 16 - Issue 2, Dementia - p 191-211
doi: 10.1212/01.CON.0000368219.94458.6e
Article

Frontotemporal degeneration (FTD), one of the most prevalent causes of presenile dementia, includes three subtypes: (1) behavioral variant FTD (bvFTD), (2) semantic variant (SV), and (3) progressive nonfluent aphasia (PNFA). Corticobasal degeneration, progressive supranuclear palsy, and FTD-ALS are linked clinically and pathologically to FTD. The clinical presentation of these FTD-related disorders comprises a wide spectrum, including behavioral and psychiatric symptoms, aphasia, motor neuron findings, and parkinsonism. Two types of proteinopathies, tau and TAR DNA-binding protein 43 (TDP-43), are seen in most cases at autopsy. Mutations on the genes for tau and progranulin on chromosome 17 each account for 5% to 10% of familial FTD cases. Imaging reveals focal bifrontal atrophy and hypometabolism in bvFTD, asymmetric bilateral anterior temporal lobe changes in SV, and left perisylvian abnormalities in PNFA. Treatments for FTD are under active investigation and may soon reach clinical trials.Continuum Lifelong Learning Neurol 2010;16(2):191-211.

Relationship Disclosure: Dr Yener has received personal compensation from Lundbeck Inc., for scientific advisory board activities and from Novartis for speaking activities. Drs Papatriantafyllou and Rosen have nothing to disclose.

Unlabeled Use of Products/Investigational Use Disclosure: Drs Yener, Papatriantafyllou, and Rosen have nothing to disclose.

© 2010 American Academy of Neurology
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