Semantic dementia
Synonyms: Semantic primary progressive aphasia | Semantic variant PPA
Semantic dementia (SD) is a form of frontotemporal dementia (FTD; see this term) characterized by the progressive amodal and profound loss of semantic knowledge (combination of visual associative agnosia anomia surface dyslexia or dysgraphia and disrupted comprehension of word meaning) and behavioral abnormalities attributable to the degeneration of the anterior temporal lobes.
Data from Orphanet are used to provide information on a disease's name, synonym(s), and overview.
Reference: Access aggregated data from Orphanet at Orphadata.
Orphadata: Free access data from Orphanet. © INSERM 1999. Available on http://www.orphadata.org. Data version April 2024
Newly diagnosed with
Semantic dementia?
Our RARE Concierge Services Guides are available to assist you by providing information, resources and connections as you navigate your rare disease journey.
Advocacy Organizations
Ducks For Dementia
Ducks For Dementia, founded on the profound compassion and vision of a young boy named David, aims to bring solace and understanding to individuals with dementia and their families. Our mission is rooted in the distribution of toy ducks as symbols of comfort, which serve not only as therapeutic aids but also as beacons of joy and companionship for those navigating the complexities of dementia.
KIF1A.ORG
KIF1A.ORG is a global community dedicated to improving the lives of those affected by KIF1A Associated Neurological Disorder (KAND) and accelerating research to find a cure.
Clinical Trials
For a list of clinical trials in this disease area, please click here.